The two components of the cardiovascular system are arteries and veins. The cardiovascular system is in charge of distributing blood to various regions of the body.
cardiovascular system is made up of the organs and tissues listed below:
A closed blood cardiovascular system, Among these vessels are:
Arteries are blood vessels that transport blood out from the heart.Veins are Blood vessels that return blood to the heart.Capillaries are small blood veins that branch off from arteries to supply blood to all bodily tissues.The body has two blood circulation systems. The first is the circulatory system as a whole. This is the main blood circulatory system that transports blood to the body's organs, tissues, and cells. The pulmonary circulatory system is the second system. The circulatory system transports blood from the heart to the lungs. It is the site where oxygen enters and carbon dioxide exits the circulation.
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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:
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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what information could be obtained from wolf scat? a. dna profiles b. vegetation preference c. presence of arthritis d. amount of urea e. time since last meal
DNA profiles could be obtained from wolf scat. DNA profile can inform a scientist about the origins of the sample's DNA, including whether it came from a man, woman, or any other type of organism.
DNA profiling is the process of obtaining a particular DNA pattern, or profile, from an individual or a sample of body tissue.
Human DNA profiles can be used to establish parentage or determine the source of a DNA sample from a crime scene.
The following purposes of DNA profiling include identifying the likely source of a bodily fluid sample connected to a crime or crime scene and revealing family links.
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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.
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
defense of the body against a particular pathogen is provided by a) innate immunity. b) adaptive immunity. c) immunological surveillance. d) skin defenses.
The body's natural defenses against all disease types are known as innate immunity.
The innate, or nonspecific, immune system is one of vertebrates' two main immune defense systems, together with the adaptive immune system. Innate immunity is the oldest and most common immune response in plants, fungi, insects, and early multicellular animals in terms of evolutionary defense mechanisms (see Beyond vertebrates).
The following are some of the innate immune system's main responsibilities:
The complement cascade is activated to identify bacteria, excite cells, and promote clearance of antibody complexes or dead cells by producing chemical factors, such as chemical mediators referred to as cytokines.The adaptive immune system is triggered by antigen presentation and functions to identify and destroy foreign compounds in organs, tissues, blood, and lymph.To know more about natural defenses
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The main function of prop roots in mangroves is to
A. aerate the plant
B. produce and store food
C. keep mangroves upright
D. absorb water far below the earth
if meselson and stahl never saw their original band of labeled dna move or change, what would that have supported?
If Meselson and Stahl never saw their original band of labeled DNA move or change, the experiment would have supported the model of semi-conservative.
The experiment carried out by Meselson and Stahl proved that DNA replicates semi-conservatively, i.e., each strand of a DNA molecule acts as a template for the synthesis of a new, complementary strand. These studies, according to Meselson and Stahl, demonstrated the semi-conservative nature of DNA replication. The DNA strands split apart and replicated one another, resulting in daughter molecules that included both an "old" and a "new" DNA strand.
When a new double-stranded DNA molecule is created, one strand will come from the original template molecule, making DNA replication a semi-conservative process. There will be a brand new strand created. In order to separate various compounds in a solution, Meselson and Stahl utilized density-gradient centrifugation. Later, they used the same technique to separate DNA molecules in a solution.
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Repeated irrigation in dry climates leads to accumulation of salts in the upper layers of the soil, a process called ____.
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.
Answer:
C: PEA
Explanation:
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)
Answer:
beautiful the temperature is to hot so the clouds can not sustain it
According to the results of this experiment, germination of tobacco seeds during the first week is ______.
According to the results of this experiment, germination of tobacco seeds during the first week is increased by exposure to light.
It is presumable that light affects the germination of tobacco seeds in at least two different ways. It does this by first turning on the PHY signal pathway, which releases photo-dormancy and encourages germination. Second, in tobacco seeds that are not photo-dormant, light speeds up endosperm rupture. Therefore, on performing an experiment to germinate tobacco seeds, germination would increase on exposure to light.
Because the tobacco seed is so tiny, it must be sown indoors. It needs a minimum temperature of 65 degrees in order to germinate. Six weeks before the last frost, plant the seed in seed compost rather than potting soil. When planting, just lay the seed directly on top of the compost.
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How are the genes involved in the production of proteins?
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 .
what ancient society we studied in this class produced stamp seals with images of animals like water buffaloes, tigers, and elephants, accompanied with glyphs that have never been deciphered?
Pashupati Seal of Harappan civilization from Mohenjo Daro produced stamp seals with images of animals like water buffaloes, tigers, and elephants.
A seal is a tiny, portable artifact that can be fashioned of a variety of materials, including stone, metal, bone or ivory, and various synthetic pastes.
The Pashupati Seal of the Harappan civilization from Mohenjo Daro is the most well-known seal. A seal-shaped figure is in the center, sitting cross-legged, surrounded by various animals, including an elephant, a tiger, a rhino, and a buffalo to its right.
Commercial uses for these seals included making clay tags for sacks that carried goods to various locations and sealing the mouths of jars by pressing the seals against soft clays. These seals were also employed in trading activities.
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in a diploid individual, one chromosome carries f and b genes, and the homologous chromosome carries different forms (alleles) of these same genes, f and b. see the image below for an illustration of the diploid, the original cell at the start of meiosis. if there is no crossover of the non-sister chromatids during the early phases of meiosis, the genotypes of the resulting gametes will be:
The resulting genotype would be fB, fB, Fb, Fb if no crossing over of non-sister chromatids occurs during the early stages of meiosis
Homologous recombination is the genetic outcome of a physical exchange between two aligned identical DNA regions on two distinct chromosomes or on the same chromosome (HR). Numerous markers surround the exchange region, and HR is present on the majority of homologous chromosomes.
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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?
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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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?
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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Identify the reproductive advantages seed plants have over seedless vascular plants and nonvascular plants
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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how does taste work? what type of signaling is it? long distance? short distance? contact dependent? a mix?
The taste buds are peripheral sensory organs that have the ability to respond to various sapid chemicals. These organs transmit by synapses between taste cells and primary afferent sensory fibers to afferent nerves. Signals of taste begin as soon as food particles are recognized by the receptor protein on taste bud cells.
What are the different kinds of signaling?
• Paracrine signaling/ short distance signaling
• Autocrine signaling
• Endocrine signaling/ long distance signaling
• And Direct contact
These are the 4 basic kinds of signaling found between cells.
Therefore taste bud signaling would be a short distance signaling as they communication between cells is quick and near.
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an organism that thrives in the desert does not do well in a tropical rainforest. when there is plenty of water, shouldn't the organism do even better? explain.
Since these organisms are well adapted to the desert, putting them in a tropical rain forest where there is more than enough water for them will have the opposite effect of what would happen if more water were applied: it will have a negative impact.
Any organic, living system that performs as a standalone unit is referred to as an organism. All living things are made up of cells. Taxonomy separates species into protists, bacteria, and archaea, which are unicellular microorganisms, or multicellular animals, plants, and fungi.
A living item is considered an organism if it has an organized structure, is capable of responding to stimuli, can reproduce, grow, and can adapt to its environment. Therefore, every animal, plant, fungus, protist, bacterium, or archaeon found on Earth would be considered an organism.
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a country with an age distribution graph in the shape of an inverted (upside down) triangle, (with the point facing downward) would be experiencing what in the years ahead: a. rapid future population growth b. declining future population growth c. no change in future population growth d. no prediction can be made from these types of graphs
A country with an age distribution graph in the shape of an inverted (upside down) triangle, (with would be experiencing declining future population growth.
The term "diminishing" refers to a graph with an inverted "pyramid" or triangle shape age structure, which shows a population that is getting smaller. The population will decrease since the generations in reproductive years have given birth to a generation that is smaller than themselves. With its broad top and noticeably narrower base, the inverted triangle shape demonstrates all of this. Therefore, option B marks the right choice.
Comparing differences between a region's male and female populations can be done using a population pyramid. Additionally, they display the total number of dependents (children and, occasionally, elderly people) as well as the demographic makeup of the population at any given time.
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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)
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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what is the most fundamental reason that taxonomy changes (sometimes rapidly), at all levels (order, family, genus, species, etc)?
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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what morphological features have traditionally been used to classify animals, but are now recognized as being less useful in determining evolutionary relationships than originally thought
segmentation; presence/absence of a coelom are the morphological features that have traditionally been used to classify animals but are now recognized as being less useful in determining evolutionary relationships.
Animals are primarily divided into groups based on their physical and developmental traits, such as their body plans. The morphological symmetry of genuine animals' body plans is one of their most notable characteristics. This implies that the distribution of their bodily components along an axis is balanced. The number of tissue layers that form throughout development, the existence or absence of an internal body cavity, and other aspects of embryological development, such as the mouth's and the anus's genesis, are additional characteristics.
The complete question is:
What morphological features have traditionally been used to classify animals, but are now recognized as being less useful in determining evolutionary relationships than originally thought?
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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.
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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What is a non-example of chloroplasts in real life term?
Answer:
Mitochondria is a non-example of chloroplasts.
Explanation:
Chloroplasts are only found within Plant Matter.
In humans, impulses that control the voluntary muscles of the skeleton travel along the nerves of the?.
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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for the eukaryotic dna sequence shown, what region of the dna will be transcribed into mrna? a. 1-123 b. 21-101 c. 41-101 d. 41-123 hint
The dna's 41-100 area will be translated into mrna for such eukaryotic DNA sequence that has been shown.
What constitutes a eukaryotic?Any cell or creature that has a distinct nucleus is called a eukaryote. The nucleus, which houses the clearly defined chromosomal (bodies containing the hereditary material), is surrounded by a nuclear membrane in eukaryotic cells.
What are eukaryotic cells primarily used for?Conclusion. Within eukaryotes, organelles perform a variety of specialised tasks include energy synthesis, photosynthesis, and membrane creation. The majority are membrane-bound organelles that serve as the locations of particular biochemical processes.
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How many chromosomes would a cell have after mitosis if it has 24 chromosomes during interphase?
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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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?
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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Which ventilation allows warm air to escape while drawing in fresh, cooler air?
O Active
O Passive
O Natural
O Automatic
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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question mode multiple choice question neurotransmitters function multiple choice question. only to stimulate neurons to fire. neither to stimulate nor inhibit neuron firing. only to inhibit neurons from firing. to stimulate or inhibit neuron firing.
Neurotransmitters have the ability to neither promote nor inhibit neuronal activation.
Option B is correct.
Multiple-choice question: Which neurotransmitter affects how muscles learn and remember things?Acetylcholine. Acetylcholine is the sole member of its class of neurotransmitters. It is the major neurotransmitter linked to motor neurons and can be found in both the central and peripheral nervous systems. 14 Along with memory and learning, it affects how muscles move.
How are movements regulated by neurotransmitters?Dopamine is a neurotransmitter that affects how we move and how we stand. Additionally, it modifies mood and is essential for both dependence and reinforcement. Muscle rigidity characteristic of Parkinson's disease is brought on by dopamine depletion in some areas of the brain.
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