In a muscle cell, myofibrils contain what is referred to as sarcomeres.
What are Myofibrils?These are protein filaments which are responsible for contraction and relaxation in muscle cells.
They contain structures known as sarcomeres which are linked in series hence the reason why it is the most appropriate choice.
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Design an imaginary food web or describe a real one. Include at least 4 living organisms that interact in your ecosystem.
The trophic web is the interaction between different organisms in which there is energy transference. In the attached example, we consider plants, beetle, rabbit, frog, eagle, fox, mountainlion, and fungi.
What is the trophic web?The trophic web is the interaction between different organisms involving transference of energy when some of them feed on the other ones.
The ones placed at lower levels pass energy to the ones at the higher levels.
Organisms at each level feed on the preceding one and become food for the next one.
• The first link corresponds to a producer organism -autotroph-.
• The following links are the consumers -heterotrophs- ⇒ herbivores and carnivores.
• The last links are the decomposers that degrade organic matter from dead organisms.
Because it is a web, all organisms are in equilibrium until a change occurs. When a sudden change affects any of the involved links, there can be a cascade effect on the web.
Any change in a link population size (increasing or decreasing) will affect the superior links and the immediately anterior link.
Example.
To make the trophic web, first, we need to have at least four links.
So first, let us list the organisms we are working with, and then define the position of each of the organisms on the web.
plants,beetle,rabbit,frog,fox,mountain lion, eagle,FungiProducer → this is the autotroph organism that takes energy from the sun or any other inorganic source → An example of this is any plant.
Consumers → heterotroph
⇒ Herbivores → These are the animals that feed on any part of the plants → These are the beetle and the rabbit
⇒ Carnivores → These are the animals that feed on herbivores → These are the frog, the fox, the eagle, and the mountain lion
Decomposer → detritivorous organisms that take energy from dead matter → Fungi
Trophic web,
Plants directly provide energy to the beetle and the rabbitPlant >> Beetle and Rabbit
The eagle takes energy from the rabbit and the frog takes energy from the beetle.Rabbit >> Eagle
Beetle >> Frog
The fox takes energy from the frog and from the rabbitFrog and rabbit >> Fox
The Fox and the eagle transmit energy to the mountain lion.Fox and Eagle >> Mountain lion
Fungi takes energy from dead organic matterPlants, beetle, Rabbit, Fox, Eagle, Mountain lion >> Fungi
You will find an image in the attached files.
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Which structure controls certain functions of inheritance and cell behavior?
20 POINTS - AP Biology - Sexually reproducing organisms have diverse offspring but use large quantities of time and resources in the process....
A particular ant species has four pairs of chromosomes. Identify genetic possibilities from independent assortment of a gamete
There are "256" different genetic combinations that a gamete may make by independent assortment.
What is meant by independent assortment?
Homologous chromosomes are allocated at random to daughter cells during meiosis, while distinct chromosomes segregate apart from one another. The term for this is independent assortment. It produces gametes with distinctive chromosomal arrangements.
Calculation:
Here, the number of chromosomal pairs in the ant = 4.
Every pair of chromosomes is going to be divided into a single gamete during the gametogenesis process.
Therefore, there are 4 unpaired chromosomes in all.
Now that the gametes lack paired chromosomes, they are haploid.
Now, a gamete would only contain one of the single chromosome pairs.
Let's assume that the chromosomal gene in the cell is heterozygous.
There are thus going to be options = 2.
Therefore, their likelihood will provide possibilities =2 x 2= 4.
Then there would be 4⁴ chromosomes = 256 chromosomes.
Therefore it is concluded that the genetic possibilities from the independent assortment of a gamete are "256".
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Astronomers have just discovered a new object that has appeared to bend space. What aspect of the object is responsible for the effect the object has on the fabric of space
Answer:i believe the answer would be mass
Explanation:
space is like a tampoline if you put a tennis ball it doesnt really do much but if you put a 20 lb bowling ball it will cave in a bit. Therefore the mass would bend space (you could search up einstines theory)
Which organelle in the table is correctly matched with its function?
The organelle in the table that correctly matches its function is the ribosome because it produces proteins.
What is a ribosome?A ribosome is an organelle that functions as a protein factory in the cell, whereas vacuoles contain dissolved materials and store water.
Mitochondria are energy producers by the process of cellular respiration, and lysosomes contain hydrolytic enzymes.
In conclusion, the organelle is a ribosome that produces proteins.
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If you observed that the Sun did not set during an entire 24-hour period of time during the summer months of June, July, and August, where are you most likely located?
South Pole
a location in the mid-latitudes
North Pole
near the Equator
Sun did not set during an entire 24-hour period of time during the summer months of June, July, and August, you are most likely located at the North pole.
The sun does not set above this latitude during the summer because of the Arctic Circle Phenomenon. The Arctic Circle is a fictitious boundary. The Arctic Circle's North Pole experiences extended periods of continuous sunshine, mostly in the months of June, July, and August. The reason for this is that Earth's axis is slanted by 23 degrees, and during the summer months when it rotates, the North Pole aligns with our star. For instance, the farthest reaches of Norway.That is why during the summer months of June, July, and August, the Sun did not set for a full 24 hours.
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What would the genotype of the parents need to be to produce a child that has a 50% chance of being born homozygous recessive and a 50% of being born heterozygous for Huntington’s disease? An empty Punnett square is provided to show your work
One of the parents must be heterozygous while the other must be homzygous.
Huntington diseaseHuntington's disease is an autosomal dominant disease. In other words, only one allele (dominant) is required for the disease to manifest.
In order to produce a child with a 50% chance of being homzygous for the disease, one of the parents must be heterozygous for the disease, while the other must be homzygous.
Assuming the allele for the disease is A(a).
AA x Aa
AA Aa AA Aa
Probability of AA = 2/4 or 50%
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What would the genotype of the parent mice need to produce offspring with the genotypes. FF and Ff? (An empty punnet square is provided to show your work)
Show your work
The genotypes of the parents to produce offspring with the genotypes FF and Ff are FF and Ff.
What is Punnett square?The Punnett square is a graphical representation used to determine the frequency of a given genotype.
In this case, the Punnett square may be (alternatively, parents can also be heterozygous):
F f
F FF Ff
F FF Ff
In conclusion, the genotypes of the parents are FF and Ff.
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Non-steroidal hormones can be produced by all of the following except the
pancreas
pituitary gland
hypothalamus
adrenal cortex
Answer: its b i just got done with it
Explanation:
What is the term for the measurement of how well a machine converts input
work into output work?
OA. Machinery
OB. Power
OC. Mechanical efficiency
OD. Work
Answer: OC. Mechanical Efficiency
Explanation: The percentage of user input (input work) that is converted into output work by a machine is known as efficiency (output work). The output work is never more than the input work because some of the input labour is used to remove friction. Efficiency therefore never approaches 100%.
The hydrogen ion reservoir is located in the ____________________ and ATP synthesis occurs in the ____________________. In order to facilitate reproduction, independent of cell division, both of these organelles have _________________________ and _________________________.
How We can educate people from the ecological footprint that the 3 main factors of the footprint are transportation, housing and food decisions?
When considering educating people from the ecological perspective, it is important to remark eco-friendly methods of transportation, sustainable homes, and avoid wasting food.
How education is associated with an ecological perspective?The process of education should ideally exhibit a deep connection with ecological issues in order to preserve natural resources and achieve successful resource management.
For example, transportation may be based on the use of eco-friendly strategies such as cycling and the development of suitable green roads.
In conclusion, when considering educating people from the ecological perspective, it is important to remark eco-friendly methods of transportation, sustainable homes, and avoid wasting food.
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Read the scenario.
A biologist sets up an experiment to see how different antibiotics affect the growth of the bacteria Clostridium perfringens. She grows colonies of the bacteria on four different Petri dishes filled with agar, a growth medium containing nutrients for the bacteria. She then applies a different antibiotic to three of the bacteria colonies in the Petri dishes. She leaves the fourth Petri dish to grow bacteria without any antibiotic.
Each Petri dish is the same size, contains the same nutrient agar, and is placed in an incubation chamber at the same temperature. At the end of the experiment, the biologist measures the diameter of the bacteria colonies on the Petri dishes.
Question
What factors must be kept constant in the experiment to obtain valid results?
size of the Petri dish, nutrient agar, diameter of the bacteria colony
bacteria species, type of antibiotic, diameter of the bacteria colony
type of antibiotic, nutrient agar, temperature
nutrient agar, temperature, bacteria species
Factors that must be kept constant in the experiment to obtain valid results are option (c) i.e, type of antibiotic, nutrient agar, and temperature.
what are antibiotics?A particular class of antimicrobial agents that works against bacteria is an antibiotic. Antibiotic drugs are frequently employed in the treatment and prevention of bacterial infections because they are the most effective type of antibacterial agent for doing so. Bacteria may be killed or have their growth suppressed.
They could harm the bacterial cell directly by attacking the cell wall. These cells can no longer do additional harm to the body since the bacteria cannot attack it. Other antibacterials, such as tetracycline and erythromycin, prevent the germs from multiplying or growing.
Antibiotics limit bacterial growth and replication by interfering with the bacterial cell wall. Because many types of bacteria have cell walls but human cells do not, antibiotics can kill bacteria while sparing human cells.
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How many
strands will
each new DNA
molecule that is
created during
replication
have?
Answer:
Two strands.
Explanation:
Answer:
2 strands
Explanation:
DNA is a double-stranded helix. During replication, the helix is broken apart and DNA polymerase adds new nucleotides to both strands. This results in the creation of new DNA. DNA will always have 2 strands.
Which combination of alleles should be here ?number 2
Select the description of sensory receptors.
1. A group of neuron cell bodies located in the CNS
2. Organs of the PNS that conduct impulses toward the CNS
3. Cells that detect changes in the body or external environment
4. The axon terminals of efferent fibers that synapse with muscle fibers
Reactions where an electron (or hydrogen) pass from one atom or molecule to another are called:
Question 18 options:
enzyme mediated
energy capturing
fermentation
oxidation-reductions
Reactions, where an electron (or hydrogen) passes from one atom or molecule to another, are called oxidation-reductions
A chemical reaction known as an oxidation-reduction (redox) reaction includes the exchange of electrons between two substances. Any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by acquiring or losing an electron is referred to as an oxidation-reduction reaction.
Oxidation reaction: An oxidation reaction is a chemical reaction in which oxygen is acquired or hydrogen is destroyed. such as the 2Cu+O2heating 2CuO Reduction response. Reduction reactions occur when either hydrogen or oxygen is acquired or lost. such as CuO+H2heating Cu+H2O
When a reactant loses electrons in a reaction, oxidation takes place. When a reactant obtains electrons during a reaction, reduction takes place. This frequently happens when acid and metals react.
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Give one function for this structure
We are very happy to let you know that one function of the structure labelled from the image given here is that:
It is used for se- x -ual intercourse
In addition to the function above, the structure is also used for urination. That is, it used to pass out urine from the body
The structure is s it the pe- nis ( the male reproductive organ )
What is reproduction?Reproduction is one of the characteristics of living organisms which involves the giving birth to the young ones alive or reproduction of new offsprings
So therefore, we are very happy once again to let you know that one function of the structure labelled from the image given here is that:
It is used for se- x-ual intercourse
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What type of plants contain two cotyledon?
A. Dicots
B. Monocots
C. Unicots
D. Multicots
Answer:
A. Dicots
Explanation:
A monocot, which an abbreviation for monocotyledon, will have only one cotyledon and a dicot, or dicotyledon, will have two cotyledons.
Which statement describes a process associated with meiosis?
Answer:
B. Haploid cells join to form an organism that has a complete set of chromosomes.
Explanation:
The answer is B because a haploid cell from each parents makes a diploid cell which has a complete set of chromosomes, 23 from each parent!
Identify the independent clause in each sentence below.
1. (We arrived late) because we couldn't find the theater.
2. (The play started) before we found our seats.
3. (We got one of the special) programs that were being sold.
4. When the play was over, (the audience applauded.)
5. After we saw the show, (we went for a walk.)
6. Although the night was cool, (the walk was enjoyable.)
7. While we were walking, (I noticed the moon.)
8. Since it was a full moon, (it was shining brightly.)
9. (We walked along the lake) until it became very late.
10. By the time I got home, (it was almost midnight.)
Explanation:
mhrssxxxx please mark as brainllest
Read this review of a science fiction novel. This new science fiction novel is one of the best that I have ever read. It takes place on a shuttle that shines brightly in the deep, dark reaches of outer space. There are colorful characters, exciting action sequences, and lots of suspense. For these reasons and many others, I would say that this book is one of the best! Which technique does the author use to convince the audience that this science fiction novel is high quality? word choice to create ethos imagery to create pathos repetition to create logos imagery to create ethos
A persuasive technique which the author used to convince the audience that this science fiction novel is high quality is: D. imagery to create ethos.
What is a persuasive essay?A persuasive essay can be defined as a type of essay in which the aim of an author (writer) is to convince the readers (audience) to accept his own point of view, perspective, ideas or opinions.
In English literature, the three modes of persuasion in a rhetorical situation include the following:
Logos PathosEthosWhat are ethos?Ethos can be defined as the emotions or character of an author (writer) that are expressed so as to persuade an audience to accept a specific point of view, perspective, ideas or opinions.
In this context, we can infer and logically deduce that a persuasive technique which the author used to convince the audience that this science fiction novel is high quality is imagery to create ethos.
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Answer:
i think its "D"
Explanation:
yw!
One cell from an organism has a cell wall but no mitochondria will this organism be multicelluar or unicelluar
Which of these ideas correctly states a relationship between the practice of conserving energy and the effect that it has on people's health?
If people conserve energy, they will have more energy to exercise.
Energy conservation promotes less air conditioner use and warmer homes.
Energy conservation means less energy needs to be produced in power plants.
If people use more energy, there will be more energy related jobs.
The idea that correctly states a relationship between the practice of conserving energy and the effect that it has on people's health is: Energy conservation promotes less air conditioner use and warmer homes (option B).
How is energy conserved?To conserve means to use judiciously or wisely, therefore, energy conservation refers to the effort made to reduce the consumption of energy by using less of an energy service.
The conservation of energy helps to reduce workload on mechanical devices such as air conditioner, cooker etc.
Therefore, the idea that correctly states a relationship between the practice of conserving energy and the effect that it has on people's health is: Energy conservation promotes less air conditioner use and warmer homes.
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what do we call the outer layer of the nucleas?
Which of the following did you remember?
The nucleus directs cell activity.
Ribosomes produce proteins for the cell. These proteins are then moved through the cell by the
endoplasmic reticulum.
The Golgi apparatus packages and distributes proteins from the endoplasmic reticulum.
Vacuoles store water, waste products, food, etc.
Lysosomes break down waste material and debris.
Mitochondria break down sugar molecules to supply energy. Similarly, chloroplasts capture the
energy from sunlight and convert it into chemical energy.
O The cell membrane protects the cell and controls what enters and leaves it. The cell wall supports
the cell membrane, maintains the cell's shape, and protects the cell.
The cytoplasm supports and protects organelles in the cell?
The information quoted in the question describes the functions of components of a cell. All the cells in the body function technical functions but every cell contains almost the exact organelles.
All statements are true and define the function of most organelles present in the cell.
What are the functions of organelles presents in the cells?The nucleus directs cell activity: the nucleus is where the genetic information is found and by means of gene expression it controls the cellular functions-Ribosomes produce proteins for the cell: Ribosomes produce messenger RNA proteins (mRNA) by connecting amino acids together-These proteins are then transferred through the cell by the endoplasmic reticulum: it is a network of membranes within the cell via which proteins and other molecules move-The Golgi apparatus packages and distributes proteins from the endoplasmic reticulum: It transforms and exports protein to the rest of the body. Proteins, in their passage through the Golgi apparatus, carry out a modification process.Vacuoles stock water, waste products, food, etc: vacuoles store substances, in plants they occupy a large percentage of the cytoplasm and adjust their size during ormo regulation.-Lysosomes break down waste material and debris: They contains hydrolytic enzymes that allow intracellular digestion of macromolecules-Mitochondria break down sugar molecules to supply energy. Similarly, chloroplasts capture the energy from sunlight and convert it into chemical energy: Chloroplasts and mitochondria through the processes of cellular respiration and photosynthesis produce energy necessary for the vital functions of the cell.
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You have a pea plant with a yellow pea phenotype but do not know if the genotype is homozygous (YY) or heterozygous (Yy). What type of cross would you do determine the genotype of this plant and what would be the predicted phenotypes of the offspring?
Answer: given --> a pea plant with a yellow pea phenotype.
Explanation:
if its is round in shape then its a homozygous but if it is wrinkled in shape then its type is heterozygous.
To determine the genotype of this plant, we can use double gene cross method taking two possibilities - round and yellow or wrinkled and yellow.
its predicted phenotype can be 1:3:3:1.
which organism is responsible for returning nutrients back to the soil
According to the research, decomposers are organisms responsible for returning nutrients back to the soil.
What are decomposers?They are different organisms such as bacteria and fungi whose main function is to break down the waste of plants and animals.
With the decomposition process where organic matter is processed into inorganic, simple elements (nutrients) reappear in the soil that are used as food by plants.
Therefore, we can conclude that according to the research, decomposers are organisms responsible for returning nutrients back to the soil.
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Describe two ways that technology has hurt the environment.
The two ways that technology has hurt the environment is pollution and mental health issues.
What is pollution?Pollution is defined as the release of harmful substances to the environment which can harm the organism living in that ecosystem.
Technology has both being a negative and a positive influence to the environment.
The two ways that technology has hurt the environment is pollution and mental health issues.
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