if heterozygous round crossed with homozygous round produce 2400 plant how many plant are pure round
Answers
If heterozygous round plant is crossed with a homozygous round plant, then it will produce 2400 plant from which 1200 plants were pure round i.e., homozygous (RR).
What is Inheritance?Inheritance is the transfer of characters from the parent generation to the offspring. It takes place through the DNA which contains chromosomes and genes. The genes are responsible for the development of various characteristics in the daughter generation.
According to Mendel's genetics, for each character or gene a pair of contrasting alleles which code for different phenotype is present.
Here, a heterozygous round plant (with two different alleles) is crossed with a homozygous round plant, which results into the production of 2400 plants in the F1 generation.
Therefore, the total number of plants which are pure round can be calculated by Punnett square.
Pure round plants are the plants which are homozygous (RR) and pure wrinkled plants are (rr).
Therefore, the number of plants which are pure red = 1/2 of the total plants or 50% of the total plants.
Thus, number of pure round plants = 1/2 × 2400
Number of pure round plants = 1200
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Related Questions
bones will usually heal after they have been severely damaged so long as the cellular components of the endosteum and periosteum survive and there is a(n)
Answers
Bones will usually heal after they have been severely damaged so long as the cellular components of the endosteum and periosteum survive and there is an ossification center.
An ossification center is the starting site for cartilage ossification. The cartilage cells at this stage grow and arrange themselves in rows, which is the first stage of ossification. The first region of a bone to begin ossifying is called the main ossification center. In the middle of each growing bone during fetal development, it typically manifests. While the major centers of irregular bones typically occur in the body of the bone, they typically occur in the diaphysis/shaft of long bones.
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Q5: Based on your answer to Q3, how many of those units does each of the above have?
Circle each unit" in the above molecules.
Answers
Carbohydrates are made up of monosaccharide; lipids are made up of Glycerol and fatty acids and Proteins are made up of Amino acids.
What are Carbohydrates?
Carbohydrates are the simple sugar molecules which consist of carbon, hydrogen and oxygen atoms having a ratio of hydrogen–oxygen of 2:1. One of three main nutrients along with proteins and fats.
Body breaks down carbohydrates into glucose which is the main source of energy for your body's cells, tissues, and organs and can be used immediately or stored in the liver and muscles for later use.
There are three main types of carbohydrates:
1.Sugars
They are also called simple carbohydrates as they are present in the most basic form.
2.Starches
They are complex carbohydrates made up of lots of simple sugars strung together.
3.Fiber
It is also a complex carbohydrate which cannot be break down
Thus, Carbohydrates are made up of monosaccharide; lipids are made up of Glycerol and fatty acids and Proteins are made up of Amino acids.
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condition in which bone mineralization and strentgh are so abnormally low that regular daily activieties can result in painful fractures
Answers
Osteoporosis is a disorder in which bone strength and mineralization are unusually low to the point that routine everyday activities can cause painful fractures.
When the bone's mineral density declines and the bone's composition, quality, or structure changes, the condition known as osteoporosis results. This typically results in a decline in bone density, which makes bones brittle and raises the risk of bone fracture in those who have it. These fractures typically affect the spine, wrist, or hips.
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Which ventilation allows warm air to escape while drawing in fresh, cooler air?
O Active
O Passive
O Natural
O Automatic
Answers
Passive ventilation allows warm air to escape while drawing in fresh, cooler air.
The correct option is B.
What is ventilation?Air is moved through the conducting tubes between both the lungs and the atmosphere during ventilation, often known as breathing. Pressure gradients created by the diaphragm or thoracic muscles flexing cause the air to travel through the channels.
Why is ventilation important biology?To keep the gradients in gas concentration in the alveoli, a breathing system is required. The concentration of carbon dioxide and oxygen between both the blood and the alveoli causes gas diffusion.
What differentiates ventilation from respiration?The processes of respiration and metabolism are separate. Physiologic respiration involves the exchange of gases in the cells and the alveoli (external respiration). Mechanical ventilation involves the movement of air (internal respiration).
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What is a non-example of chloroplasts in real life term?
Answers
Answer:
Mitochondria is a non-example of chloroplasts.
Explanation:
Chloroplasts are only found within Plant Matter.
Repeated irrigation in dry climates leads to accumulation of salts in the upper layers of the soil, a process called ____.
Answers
Repeated irrigation in dry climates leads to accumulation of salts in the upper layers of the soil, a process called salinization.
Soil salinity is the quantity of salt withinside the soil. The system of growing the salt content material is referred to as salinization. Salt is a certainly taking place compound determined in soil and water. Salinization may be due to herbal strategies which include mineral leaching or the withdrawal of salt deposits from the oceans. Salinization also can arise because of human sports which include irrigation.
The accumulation of an excessive amount of salt, particularly at the surface, is due to the motion of salt thr the capillary system from the element withinside the soil that's full of liquid with dissolved salts, to the surface. The evaporation system attracts liquid from the soil to the surface, and the evaporated liquid leaves salt at the soil surface. Concentrated salt also can come from chemical fertilizers.
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Circle the letter of the correct choice.
1. If an atom were the size of a football stadium, the nucleus would be about the
size of a
a. microwave oven.
b. basketball.
c. pea.
d. car.
Answers
Answer:
C: PEA
Explanation:
How many chromosomes would a cell have after mitosis if it has 24 chromosomes during interphase?
Answers
If a cell has 24 chromosomes during interphase then after mitosis or mitotic division it will have 24 chromosomes.
Interphase is the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.
Mitosis or mitotic division is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
If a cell has 24 chromosomes during interphase then the daughter cell resulting from mitotic division or mitosis will have 24 chromosomes.
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Mary uses the process of baking a cake as a model to help her friend understand how genes function in people. The ingredients in Mary’s cake recipe are:
Flour
Milk
Eggs
Baking powder
Sugar
Butter
Vanilla
The cake recipe provides directions for how to mix the ingredients together, the temperature of the oven, and the length of time the cake needs to bake. The end result is a plain, yellow cake.
Use Mary’s model to explain the process of how an observable trait (such as curly hair or brown eyes) happens in people. Begin your explanation with your answer to part (a)
Answers
The cake recipe that Mary uses in baking the cake can model a gene. The ingredients that Mary uses represent the amino acids used in making the protein. The plain, yellow cake then represents an observable trait (such as curly hair or brown eyes)
What are genes?Genes are units of inheritance in living organisms.
Genes are segments of DNA that contain information about how a character will be. The information contained in that gene will be used to design and build that character.
In living organisms, these traits or characters are expressed as proteins, Hence, genes are used to make proteins that determine a given character.
Genes usually have alternative forms known as alleles.
The characters controlled by alleles may be dominant characters or recessive characters.
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How has the development of organoids helped in treating snakebites?(1 point)
A. Organoids provide toxins that help to build immunity in communities with dangerous snake populations.
B. Organoids replace stem cells in the snake that make the dangerous venom.
C. Organoids provide laboratory produced antivenin to treat a variety of snakebites.
D. Organoids help to differentiate cells in the victims of snakebites.
Answers
The development of organoids helped in treating snakebites in the sense that they provide laboratory produced antivenin to treat a variety of snakebites (Option C).
What are organoids?The term organoids here make reference to tridimensional model structures derived from embryonic and/or adult venom snake glands which have been developed using stem cells and holds promise to be used in the future.
Therefore, with this data, we can see that the organoids can be defined as tridimensional model structures obtained from venom snake glands which are cultured as stem cells in order to obtain an outcome.
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When a human donor gives a pint of blood, it usually requires how many weeks for
the body
RESERVE of red corpuscles to be replaced? Is it:
Answers
When a human donor gives a pint of blood, it usually requires 7 weeks for the body RESERVE of red corpuscles to be replaced.
What are red corpuscles?Red blood cells, also referred to as red cells, red blood corpuscles, haematids, erythroid cells or erythrocytes, are the most common type of blood cell and the vertebrate's principal means of delivering oxygen to the body tissues—via blood flow through the circulatory system.
Moreover, red blood cells carry oxygen from our lungs to the rest of our bodies. Then they make the return trip, taking carbon dioxide back to our lungs to be exhaled.
Therefore, blood and lymph cells are both considered to be corpuscles because they are suspended in liquid within the body. Sometimes the word is used to mean simply "a small piece of something,".
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which species interaction depends on prey density and effectiveness of prey defenses to determine the impact on the prey population?group of answer choicescompetitionmutualismconsumptioncommensalism
Answers
Prey density and the efficiency of prey defenses influence consumption species interaction, which has an effect on the prey population.
In basic terms, what is species?A species is a group of organisms made up of similar individuals capable of breeding or exchanging genes with one another. The most fundamental taxonomic rank and unit of classification in biology is the species. A genus is the taxonomic rank after an individual in the biological categorization system.
What is the best definition of a species?A species is frequently described as the biggest group of creatures capable of sexual reproduction, in which any two individuals of a right sexes or mating types can result in fertile offspring. The karyotype, DNA sequence, anatomy, behavior, and ecological niche are further methods of distinguishing species.
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a biologist intends to use pcr to perform a task. the biologist probably is trying to choose one: a. cut dna into many small fragments. b. make many copies of a dna fragment. c. separate dna fragments from one another. d. isolate dna from a living cell.
Answers
A biologist intends to use PCR to perform a task. the biologist probably is use Make many copies of a DNA fragment. The correct option is (B).
A given segment of DNA can be rapidly multiplied (amplified) to millions or billions of copies using the polymerase chain reaction (PCR), allowing for more in-depth analysis. In PCR, the part of the genome to be amplified is selected using short synthetic fragments of DNA called primers. Several rounds of DNA synthesis are then used to amplify this segment.
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whose experimental findings were that second generation reappearance of characteristics present in one of the grandparents used in his studies demonstrated that inheritance was particulate and mixing did not alter genes?
Answers
Gregor Mendel findings demonstrated that inheritance was particulate and mixing did not alter genes.
Gregor Mendel, discovered the fundamental law of inheritance . He said the genes usually come in pairs and get inherited as unique units, as one from each parent. Mendel also state the law of segregation of parent gene and their appearance as dominant and recessive gene in offspring.
Mendel performed his experiment on pea plant ,Mendel developed three principles of inheritance that described the transmission of genetic traits. He performed this experiment by choosing seven different characteristic of pea plants .
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50 POINTS FOR THIS
GOOD LUCK :)
Answers
Answer:
1. "Atmospheric humidity is usually measured with a psychrometer and can be described in several ways. The dew-point temperature and the absolute humidity represent the actual moisture in the air, while the relative humidity indicates the degree of saturation at a given temperature."
2. "The dew point is the temperature to which air must be cooled to become saturated with water vapor."
3. "When air has reached the dew-point temperature at a particular pressure, the water vapor in the air is in equilibrium with liquid water, meaning water vapor is condensing at the same rate at which liquid water is evaporating."
4.
"The state or process that occurs when no more of something can be absorbed, combined with, or added. When the dew point equals the air temperature, the air is saturated and the relative humidity is %100.
5. "It is a common misconception that changes in temperature will affect the dewpoint. It is important to remember that dewpoint is independent of the ambient temperature. Only changes in pressure or the actual amount of water vapour present will affect the dewpoint."
6. "When the dew point equals the air temperature, the air is saturated and the relative humidity is %100."
7.
8. "Relative humidity (RH) (expressed as a percent) also measures water vapor, but RELATIVE to the temperature of the air. In other words, it is a measure of the actual amount of water vapor in the air compared to the total amount of vapor that can exist in the air at its current temperature."
9. "The term relative humidity (RH) expresses the relationship between the moisture content of air at a certain temperature and the moisture content of moisture-saturated air at the same temperature. It is given as a percentage from 0 to 100. 100% RH means that the saturation with moisture, the dew point is reached."
10. "The lower the temperature of air the less capacity it has to hold moisture in a vapor state."
11. "Warm air can possess more water vapor (moisture) than cold air, so with the same amount of absolute/specific humidity, air will have a HIGHER relative humidity if the air is cooler, and a LOWER relative humidity if the air is warmer."
Explanation:
I did some research for you, hopefully this helps
when humans began to migrate and disperse around the globe about 70,000 years ago, why did that produce genetic changes in the dna of the various migrating populations? a. the original dna code was no longer useful in the new environments. b. they lived in different environments to which they had to adapt to survive. c. the food resources in different regions were different; thus, they could no longer get all the nutrients needed to create the original dna code. d. the animals consumed for food had different dna nucleotides and thus introduced mutations into the dna code of humans. e. the plants consumed for food did not have all of the vitamins and minerals necessary to maintain the original genetic code.
Answers
Option D. the animals consumed for food had different DNA nucleotides and thus introduced mutations into the DNA code of humans, producing genetic changes in the DNA of the various migrating populations.
Researchers say early people set out searching for climates wherein extra food was to be had. And some populations stayed installed certain places due to the fact limitations like glaciers blocked their development. humans migrated out of Africa because the climate shifted from moist to very dry about 60,000 years ago, according to an investigation led by way of a college of Arizona geoscientist.
Genetic studies indicate people migrated from Africa into Eurasia between 70,000 and fifty-five,000 years ago. As the migration wave travels thru them, it accumulates range, collecting new versions from each population via which it passes. for that reason, heterozygosity will increase with growing colony quantity within the equal way that it increases within the archaic admixture model on the population in which admixture happens.
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suppose prey move out of an area at a rate proportional to the number of predators in the area. how would you modify these systems to take this into account?
Answers
If prey moves out of an area at a rate proportional to the number of predators in the area, then the number of prey and predator would be equal leading to static growth.
Predators are living creatures that chase other living beings, called prey, in arrange to nourish and subsist through a vitality exchange within the shape of nourishment. It is an interaction where one life form is profited, whereas the other included is hurt.
The predator can expend prey totally, or as it were take a portion of it, even though it causes significant damage.
Prey moreover have versatile characteristics to guard themselves against predators. Camouflage capacity: much appreciated to which they can go unnoticed in their environment.
The colors can moreover serve as an alarm, with distinctive colors or designs that demonstrate to predators that they may be in peril in case they are hurt.
If you're inquisitive to know more animals that camouflage themselves, here you'll be able to discover more than 20 creatures that camouflage themselves.
Without predators, populace x develops over time without bounds. But with predators, it'll diminish relative to the number of predators y increased by the number of prey x, since of the number of intelligent between the two species.
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what is the most fundamental reason that taxonomy changes (sometimes rapidly), at all levels (order, family, genus, species, etc)?
Answers
When scientists discover new species that can trade type structures so that you can accommodate them. DNA sequencing has additionally let us discover more about evolutionary relationships.
There are new species of plant life and animals that have steadily developed. consequently, there may be a want to reclassify organisms based totally on their newly discovered trends. the new species have new traits that never existed before; hence, scientists have come up with new methods of category.
The species is the most essential unit in taxonomy and ranks at the bottom of the biological type hierarchy. members of the equal species proportion an equal evolutionary history and are extra carefully related to every apart from they're to some other organisms, inclusive of different contributors of the identical genus.
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In the present day, is more carbon released or absorbed by the atmosphere? Why is this significant?
If CO₂ holds heat, what does this mean for Earth’s global temperature?
Which reservoir holds the most carbon on Earth?
Suggest one solution for increasing the amount of carbon being absorbed from the atmosphere. Present a short argument for why this suggestion will work.
(Refer to the Carbon Reservoirs table for ideas)
Answers
Answer:
beautiful the temperature is to hot so the clouds can not sustain it
what class of barrier to gene flow would we be observing if we noted that the offspring of a lion and a tiger (two different species) are awkward, gangly beasts that have poor survival in the wild?
Answers
The lion and tiger's postzygotic barrier progeny are ungainly, gangly animals with a low chance of surviving in the wild.
What sort of barrier is a postzygotic barrier?Low hybrid viability is one type of postzygotic obstacle to development. In this environment, hybrid offspring are born, but because of their decreased fitness, they are less likely to mature . Another illustration is hybrid sterility, in which hybrid offspring are healthy but sterile.
Why do postzygotic barriers occur?When the fitness of hybrids, independent of environment, is persistently lower than of either parental species, as a result of factors like hybrid inviability or sterility, intrinsic postzygotic barriers arise.
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if there are five different types of bases in mrna instead of four, what will be the minimum codon length needed to specify for 4, 20, and 30 different codons, or amino acids?
Answers
There are 64 combinations of 4 nucleotides taken three at a time and only 20 amino acids, the code is degenerate.
The protein-coding nucleotide triplets known as codons are found in the mRNA templates. Each triplet is always associated with a certain amino acid. Anticodons, which are nucleotide triplets in tRNA, decode the codons in the mRNA.
What about amino acids?Proteins are made up of substances called amino acids. Proteins and amino acids are the components of life. Amino acids are the byproducts of the digestion or breakdown of proteins. Amino acids are used by the human body to create proteins that aid in: Dissect food. Isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, cysteine, tyrosine, histidine, and arginine are the 12 amino acids.The body cannot naturally generate essential amino acids; therefore we must get them from the foods we eat. Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine are the nine essential amino acids. Compared to other foods, bananas do have a lot of seven of the nine essential amino acids. Banana lacks a little isoleucine and methionine. An average individual would need to consume 91 bananas (10750 grams) to get enough of each of the nine essential amino acids. Protein breakdown in the digestive system is insufficient. Anomalies in the body's biochemical processes that are inherited. A bad diet.Stress. The convenience of taking a supplement containing necessary amino acids is that you can do so whenever you want. Others like to take it on its own between meals, while some athletes choose to take it with their meals or in a protein smoothie. You can consume your necessary amino acids supplement before, during, or after working out.Learn more about amino acids here:
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How are the genes involved in the production of proteins?
Answers
Answer:
Genes carry genetic material called RNA which are used for protein synthesis
Answer:
Genes contain Codes from DNA .
Explanation:
They are two way in which genes can code for a Protein . A DNA in the nucleus (translation or transcription these are two process to send genes according to the needed ) with help of mRNA to the ribosomes and tRNA gather the specific amino acids for the specific protein .
All these can happen because genes contain the necessary codes for a specific protein .
Read the article to learn more about the types of RNA, specifically mRNA and tRNA. Use the information to answer the following question.
RNA
Explain the roles of mRNA and tRNA in protein synthesis.
Answers
The messenger RNA or mRNA is a transcription molecule that carries the information of the DNA gene sequence to be used as a template to generate a polypeptide chain, while the transfer RNA or tRNA acts during translation to transport amino acids to the site of protein synthesis.
What is mRNA?The messenger RNA (mRNA) is a sequence obtained from the process of transcription which is complementary to the DNA gene sequence and serves to transport the genetic information from DNA to proteins. Moreover, the transfer RNAs (tRNAs) carry specific amino acids that are linked to the anticodon sequence and they are used during translation in the ribosomes.
Therefore, with this data, we can see that tRNA and mRNA are fundamental during protein synthesis.
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The messenger RNA or mRNA is a transcription molecule that carries the information of the DNA gene sequence to be used as a template to generate a polypeptide chain, while the transfer RNA or tRNA acts during translation to transport amino acids to the site of protein synthesis.
Explanation:
edge 2023
Identify the reproductive advantages seed plants have over seedless vascular plants and nonvascular plants
Answers
Ones with seeds have certain advantages over plants without seeds. For instance, when a seed germinates, the budding plant utilises the food that is stored there. There is no stored nourishment in the spores of seedless plants to aid in the growth of a new plant. The ability of animals to disperse seeds is another benefit of seed plants.
An embryo starts to develop throughout the process of germination into a new plant known as a seedling. Because of the aforementioned factors, seeds had a better probability of reproducing than seedless plants (spores).
Genetic material from both parents is present in seeds that are created by fertilisation. As a result, none of the parent plants' and the offspring are genetically similar. They may be able to survive if the environment changes thanks to their genetic variety. Pollination, the act of sexual reproduction in flowering plants, is how it happens.
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some crocodiles and turtles have an exceptional ability to divert blood flow through the heart when they are diving and no longer breathing and exchanging gases. what most likely occurs when these animals dive?
Answers
When diving, blood moves to the rest of the body to support physical processes rather than the lungs.
Their left aorta emerges from the right ventricle, and their right aorta from the left. A valve that resembles a pair of cog-teeth and is located at the top of the right ventricle, which the animals can actively regulate to reroute blood flow, adds to the anatomical intricacy.
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what is radial symmetry? answer when an organism cannot be divided to produce a mirror image when an organism can be divided two ways around the central axis to make a mirror image there is only one way an organism can be divided to make a mirror image when an organism can be divided multiple ways around their central axis to make a mirror image
Answers
Radial symmetry is a type of symmetry in which the body plan is divisible into identical parts all over a central axis.
Symmetry is a characteristic of assured organisms in which there is regularity in parts on a plane or all over an axis. Radial symmetry is a symmetry in which the sides display correspondence or constancy of parts all over a central axis. It is without left and right sides. On contrary, bilateral symmetry is more usual than radial symmetry.
Relatively fewer animals possess radial symmetry. Some of them are sea stars, sea anemones, jellyfish and sea urchins. In the plant kingdom, though, many flowers are manifesting radial symmetry.
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In humans, impulses that control the voluntary muscles of the skeleton travel along the nerves of the?.
Answers
In humans, impulses that control the voluntary muscles of the skeleton travel along the nerves of the Somatic system.
A division of your peripheral nervous system that permeates almost every aspect of your body is the somatic nervous system. This system's nerves transmit data from your senses to your brain. They also transmit orders from your brain to your muscles, allowing you to move.
More specifically, the reflex arc and voluntary muscle action are both controlled by the somatic nervous system. Between the central nervous system, which consists of the brain and spinal cord, and the skeletal muscles, skin, and sensory organs, this system relays nerve signals.
Thus, the control of voluntary muscles of the skeletal system is done by sensory nerves.
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biologists have been able to produce mice that lack functioning genes for aquaporins. how would the urine of these mice compare to that of mice with normal aquaporins?
Answers
Higher volume and decreased osmolarity are seen in the urine. As a result, the urine is less osmolar than regular pee and has a bigger volume.
What about aquaporins?The majority of aquaporins answer osmotic gradients produced by active solute transport by moving water across cell membranes as their main job.Anybody of a variety of proteins found in cell membranes that let water flow through the membrane.Osmotic gradients control the flow of water through aquaporins.Red cells placed into water will grow and explode because water enters the cell, but red cells thrown into seawater would shrink because water exits the cells.Aquaporins (AQP) are essential membrane proteins that act as conduits for the passage of water and, occasionally, tiny solutes.Animals, plants, and microorganisms all have them preserved.The most Intrinsic Protein (MIP) group of channel proteins, mentioned as aquaporins (AQP), features a big impact on how plants interact with water.Transport of water and other tiny, neutral molecules through cellular biological membranes is the first function of aquaporins in plants.Aquaporins (AQPs) are essential to life and are responsible for preserving water homeostasis and transferring solutes.In response to osmotic gradients in cells, AQPs are tiny integral membrane water transport proteinsLearn more about aquaporins here:
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Can mathematical representation support that momentum is conserved when there is no force on the object?
Answers
The momentum of a system is conserved when there is no external force applied on the object. This can be represented by mathematical expression: (m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂).
What is Momentum?
Momentum is a property of a moving object which the object has by the virtue of its mass and motion. It is the product of the body's mass and velocity.
Conservation of linear momentum expresses that a body or system of bodies in motion retains its total momentum. The product of mass and vector velocity constant, until and unless an external force is applied on it. In an isolated system, there is no external force, so momentum is always conserved.
To have the momentum conserved, a system must meet two requirements:
1. Total Mass of the system must remain constant during the interaction.
2. The net external force on the system must be equal to zero.
The mathematical expression for the conservation of momentum is:
(m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂)
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the small fish known as the cleaner wrasse is found in a mutualistic relationship with larger fish species. what benefit does the cleaner wrasse obtain from the relationship?
Answers
The benefit of reliable food sources is the cleaner wrasse obtained from the relationship.
In this relationship, the cleaner wrasses establish "cleaning stations" where they consume parasites and dead skin cells from obedient reef fish. By getting rid of those parasites, the reef fish benefit, and the wrasses get a new source of food. A reciprocal relationship exists between cleaner fish and larger fish. The reason for this is that the cleaner fish feeds on the large fish's dangerous parasites and other small sources of food.
The larger fish benefit because they no longer have these parasites on them, and the cleaner fish get a meal as a result. More often than not, larger fish wait in "cleaning stations" for cleaner fish to come and remove these things from them. Even cleaners can be found among some small shrimp.
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