Answer:
Two rounds
Explanation:
Meiosis is characterized by one round of DNA replication followed by two rounds of cell division, resulting in haploid germ cells. Crossing-over of DNA results in genetic exchange of genes between maternal and paternal DNA.
A patient has had a serious accident and lost a lot of blood. In an attempt to replenish body fluids, distilled water, equal to the volume of blood lost, is transferred directly into one of his veins.
What will be the most probable result of this transfusion?
A.
It will have no unfavorable effect as long as the water is free of viruses and bacteria
B.
The patient’s red blood cells will burst because the blood fluid is hypertonic compared to the cells
C.
The patient’s red blood cells will shrivel up because the blood fluid is hypotonic compared to the cells
D.
The patient’s red blood cells will swell because the blood fluid is hypotonic compared to the cells
Answer:
I think its B. because the patients red blood cells will burst because the blood is hypertonic compared to the cells
Which of the following characteristics least relates to eukaryotic cells?
cells that do not have a nucleus or membrane bound organelles.
cells that have a nucleus and membrane bound organelles.
Fungi
Protists
green and yellow wavelengths of light are not useful to most plants.
The statement that green and yellow wavelengths of light are not useful to most plants is incorrect. In fact, green and yellow wavelengths of light are essential for plant growth and photosynthesis.
Plants primarily capture light energy for photosynthesis using specialized pigments called chlorophylls, which are most efficient at absorbing light in the red and blue regions of the spectrum. As a result, the green wavelengths of light are reflected rather than absorbed by chlorophyll, giving plants their characteristic green color.
While it is true that green light is less absorbed by chlorophyll compared to other wavelengths, it still plays a vital role in photosynthesis. Green light is still partially absorbed and contributes to energy transfer within the plant, helping drive the photosynthetic process.
Moreover, certain types of plants, such as shade-tolerant plants or plants adapted to low-light conditions, have chlorophyll pigments that are more efficient in capturing green and yellow wavelengths of light. These plants can utilize a broader range of light wavelengths for photosynthesis, including green and yellow light.
Therefore, green and yellow wavelengths of light are indeed useful to most plants. While red and blue light are more efficiently absorbed, green and yellow light still contribute to the energy needs of plants and play a role in photosynthesis.
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How can regular participation in physical activity improve an individual's overall health?
A.
Regular participation in physical activity reduces the risk of developing various diseases.
B.
Regular participation in physical activity allows an individual to function on less sleep.
C.
Regular participation in physical activity reduces the need for a balanced diet.
D.
Regular participation in physical activity prevents an individual from developing certain diseases.
Please select the best answer from the choices provided.
A
B
C
D
Answer:A
Explanation:
The bright color pigment of some frogs serves as a warning to predators. This chemical defense is known as ___.
Answer:
A pose mat is m
Explanation:
I searched it , but basically a pose mat i s m is when an animal is brightly coloring to warn predators that it is not worth eating.
Put the first word together, brainly wont let me post
The bright color pigment of some frogs is processed as a warning to vampires. This chemical defense is understood as poisonous.
What is Chemical defense?
These bright colors serve as a warning to predators: "Don't consume me; because it is poisonous." In this consideration, frogs aren't overhead bluffing.
Some nonpoisonous species of frogs have assumed the colors of poison dart frogs to trick vampires into offering them an expansive berth they don't earn.
This technique is prompted by melanin, a dark pigment. These frogs usually combine in with their surroundings and their skin functions as camouflage.
Different anurans are brightly embroidered. When If the bright colors alternate with opaque splotches the coloring may serve as a warning to predators that the frog or toad is poisonous.
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What does a plant need to create a glucose molecule in photosynthesis?
Choose all correct answers.
carbon dioxide
sunlight
water
oxygen
Answer:
carbon dioxide, water, sunlight
Which molecule is a product of respiration?
A. carbon dioxide
B. protein
C. glucose
D. oxygen
Answer:
A
Explanation:
respiration is the process by which living organisms(animals) take in oxygen a d give out carbon dioxide. this is not used for plants because plants take in carbon dioxide and give out oxygen
which farm animal has the largest eyes of any land mammal?
Answer:
The horse
Explanation:
The horse, being a farm animal, has the largest eyes of any land animal; the eyes of a horse are about 1.34 inches diameter wise.
I hope this helped!! ^v^
what occurs during a point (substitution) mutation?
Answer:
A point mutation or substitution is a genetic mutation where a single nucleotide base is changed, inserted or deleted from a DNA or RNA sequence of an organism's genome.
Explanation:
Hope this helps!
how would a plant be affected by immersion in a 5% salt solution?
Answer:
A person’s cells would also lose water that they need for normal life functions, which would disrupt homeostasis (a stable internal environment) causing that person’s cells and eventually that person to die!
Explanation:
The main structural distinction between the left atrium and the right atrium is that the left atrium has the _____, and the right atrium does not.
a. auricle
b. pectinate muscles
c. cardiac muscles
d. chordae tendinae
Given our understanding of cardiac anatomy, we can confirm that the main structural distinction is that the right atrium has the pectinate muscles, while the left one does not.
Firstly, we must address that there is a wording issue with the question. In reality, it is the right atrium that contains the pectinate muscles. The remaining options either correspond to both atrium, or neither.
The auricle is another word for ear. This is a cavity present on both the right and left atrium which allows them to extend their blood carrying capacity in situations of need. This option cannot be correct for the question since both atria possess one.
As for options b and c, cardiac muscle is present in the entirety of the heart. Cardiac muscle is the muscular cells that make up every wall and cavity of the heart and allow it to complete its unique function. Chordae tendinae, are fibers present in the ventriculus that attach the walls to the tricuspid valve, these are not present in either of the atria.
Therefore, we can confirm that though the wording is off, the intended correct answer is pectinate muscles, given that the right atrium is characterized by their presence, whilst the left atrium contains few, if any, of these muscles.
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Answer: Auricle
Explanation: Just took the test
Is DNA replication the same as cell replication? Or are they two different things?
DNA replication and cell replication both ate different but are connected to each other
in DNA replication the amount of genetic material become double but in cell division a cell divided into two parts and amount of protoplasm and cytoplasm both get half
which statement concerning rare threatened or endangered species is true
green plants use _______ and ________ as raw materials for photosynthesis
Answer:
Water and carbon dioxide.
Explanation:
Which is the most practical approach that can be done by anyone to reduce dependence on nonrenewable energy sources
The most practical approach that can be done by anyone to reduce dependence on nonrenewable energy sources are solar panels, electric vehicles, and energy-efficient appliances.
What do you mean by Nonrenewable energy?Non-renewable energy may be defined as that energy that will run out or will not be replenished for thousands or even millions of years.
Increase the use of electric and hybrid vehicles, install solar panels in a large amount, excessive use of energy-efficient appliances in the home, and the three R's are the most practical approach that can be done by anyone to reduce dependence on nonrenewable energy sources.
Therefore, it is well described above.
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In a laboratory experiment, researchers placed guppies in three different types of pools: no predation, low predation, and high predation. Researchers hypothesized that predation is a selective force and that large, brightly colored guppies are more conspicuous to predators. Based on that, what would predict the guppies will look like in the pool with high predation after 10 generations?
A) They should be smaller and not very brightly colored
B) They should be large and brightly colored
C) They should be very small and very brightly colored
D) They should be very large but not very brightly colored
Answer:
A) They should be smaller and not very brightly colored
Explanation:
I just took the test. Good luck friend!
what is the funtion of the cilia
The function of cilia is to move water relative to the cell in a regular movement of the cilia. This process can either result in the cell moving through the water, typical for many single-celled organisms, or in moving water and its contents across the surface of the cell.
Look at the picture below.
What macromolecules make up most of the structure that is shown?
Answer:
there is not a picture ....................
Answer:
B: Lipids
Explanation:
cause
If you take a freshwater animal and transfer it to seawater for 60 days, what do you expect to see when you perform immunocytochemistry
Answer:
Explanation:
You could expect the to die because fresh water animals need fresh water to survive and seawater animals need sea water to surrive
Which of the following gives bones their rigidity?
Answer:
b. Minerals
Explanation: is correct
which cell type would contain the greatest number of mitochondria?
Answer:
It is generally believed that the cells that have the most mitochondria in them are the muscle cells.
Answer:
Muscle Cell
Explanation:
the process of bacterial reproduction is referred to as
Answer:
binary fission
Explanation:
which joint is considered the most flexible joint in the body?
Answer:
The shoulder.
Explanation:
The shoulder is the most flexible joint in the body, making it the most susceptible to instability and injury. This mobility provides the upper extremity with tremendous range of motion. The shoulder join is also known as a 'ball-and-socket' joint.
is this correct ? ...
Answer:
The compression-ventilation ratio for CPR is 15 compressions to 2 ventilations. So the answer here is 4, not 2.
Rank the following according to size from smallest to largest: univierse, stars, galaxies
1) Star
2) Galaxies
3) Universe
Explanation:
Please mark as brain list
Answer:
In this order.
Star
Galaxy
Universe
Describe the role that rivers and streams play in the water cycle.
Which of the following is an example of a bond being traded on the secondary market?
Answer: D
Explanation: An investor sells a bond to another investor
An example of the secondary market is the investor sells a bond to another investor.
What is the secondary market?The secondary market is the market where the investor purchases and sells the securities.
An example could be the stock market.
Here the securities are traded when the company has been sold to provide on the primary market.
hence, An example of the secondary market is the investor sells a bond to another investor.
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in what generation does this population reach its carrying capacity
Answer:
The logistic population growth happens as the growth rate declines as the population exceeds the carrying power. The highest number of people in a community that the ecosystem can sustain is carrying capacity.
Explanation:
A population may reach its carrying capacity in any generation, depending on a variety of factors such as the availability of resources, predation, competition for resources, and other ecological and evolutionary processes.
What is carrying capacity?The carrying capacity of a population is the maximum number of individuals that can be supported by a particular environment over a given time period. A population may reach its carrying capacity in any generation, depending on a variety of factors such as the availability of resources, predation, competition for resources, and other ecological and evolutionary processes.
For example, if a population of animals is introduced to a new habitat with abundant resources, it may be able to grow rapidly and reach its carrying capacity relatively quickly. On the other hand, if the population is facing competition from other species or is subjected to predation or other limiting factors, it may take longer for the population to reach its carrying capacity.
It's important to note that the carrying capacity of a population is not a fixed value, and it can change over time due to changes in the environment or the population's own characteristics. For example, if the population grows to a size that exceeds the carrying capacity of its environment, it may begin to experience negative impacts such as resource depletion, disease outbreaks, or other factors that can reduce its size and bring it back down to the carrying capacity.
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Some researchers argue that the robust australopiths should be classified in a separate genus. What is that genus called
Answer: Researchers argue that robust Australopithecines should be classified in a separate genus called Paranthropus.
Explanation: The "robust" australopiths are a group of fossil hominins that existed in East and southern Africa between approximately 2.5 and 1.4 million years ago (Ma). They are referred to here as members of the genus Paranthropus, though considerable disagreement about their proper taxonomy persists. (credit to the internet)
4) A change in the natural sequence of bases in DNA structure is called a
Answer:
Mutation
Explanation:
A mutation is a change in the sequence of genetic letters, called bases, within a molecule of DNA.