1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dalvyx [7]
2 years ago
8

What does dr. carroll mean when he says, "while mutation is random, natural selection is not"? select all that apply. select all

that apply. mutations are caused by selective pressure dependent on environmental conditions. natural selection acts on traits. natural selection favors some mutations. mutations for advantageous traits are more likely to be passed on to the next generation?
Biology
1 answer:
jeyben [28]2 years ago
5 0
<span>Answer:
Mutations for advantageous traits are more likely to be passed on to the next generation.
Natural selection acts on traits.
Natural selection favors some mutations.

Natural selection is influenced by the various factors in the environment. In a forest that have many trees, a brown or green color will be helpful for camouflage. If an insect has a mutation that changes its color from yellow into brown or green color, it is more likely to survive because they are harder to catch. Those insects will reproduce and pass their trait. Mutation to blue or red color will not beneficial and </span>will be harder to <span>pass the natural selection.
</span>
You might be interested in
4. What effect does light have on plant growth?
Maru [420]

Answer:

this is your answer take it

Explanation:

And mark me brainlist please like also

5 0
3 years ago
How may the height of a water table create a spring
yaroslaw [1]
When prolonged and excessive rainfall the more water percolates and the water table (below the earth surface/soil) rises.  The higher the water table the more the possibility increases for a spring to form in the sense that it would now be easier for the water to find a means of escaping the underground through perhaps a crack or a cave, etc.
4 0
3 years ago
What is the basic difference in effector function between helper and cytotoxic T cells?
3241004551 [841]

Answer:

Helper T cells stimulate B-cells to produce antibodies and killer T cells to destroy the non-self cells. Cytotoxic T cells on the other hand are direct attack cells. They can kill the micro organisms by creating pores on the invader's cell.

Explanation:

T lymphocyte mediated immunity of cell mediated immunity do not secrete antibodies but they help stimulate the B cells to produce them. Immature T cells are produced in bone marrow from where they migrate to thymus via blood. In the thymus maturation of T cells occur and then they migrate to lymphoid tissue and get differentiated into three types:

a. Helper T cells: As the name suggests, they help in activating other immune cells, in other terms they are the regulator of virtually all functions of immune system. Protein mediator called lymphokines are produced by these helper T cells in order to regulate the immune functions. Some examples of these lymphokines are: Interleukin-2 interleukin-3, interferon gamma. T helper cells stimulate the B-cells to produce antibodies.

b. Cytotoxic cells or killer T cells: The lymphokine interleukin-2 is responsible for the growth and proliferation of both cytotoxic T cells and suppressor T cells. With the help of receptor proteins on the surface of killer T cells, they bind to the specific antigen. After binding, they secrete a pore forming protein called perforins which create pores on the invaders cell membrane for water to enter into it thereby cell swells and finally lyse.

c. Suppressor T cells: They suppress the function of above two T cells.

5 0
3 years ago
for each pair of terms explain how the meanings of the terms differ. 1. diffusion and osmosis 2. active transport and passive tr
alex41 [277]
1) Diffusion and osmosis 
the diffusion of water through a semipermeable membrane is osmosis and the movement of particles from regions of higher density to regions of lower density is diffusion
2)The passive transport does not require energy and the active transport does ,this is what makes them different 
3)Endocytosis is a process for moving items that are outside of the cell into the cytoplasm of the cell. Exocytosis is a process for moving items from the cytoplasm of the cell to the outside.

5 0
3 years ago
How does the digestive system work with other systems to maintain homeostasis?
SIZIF [17.4K]
They absorb nutrients.
5 0
3 years ago
Other questions:
  • Which of these is not true about jovian planets?
    10·1 answer
  • The EPA presented information concerning atmospheric greenhouse gases. In 2014, they estimated that there were 6,870 Million Met
    15·2 answers
  • Which of the following practices can help control erosion?
    10·1 answer
  • The properties and interaction of magnets are referred to as​
    12·1 answer
  • Describe the development of a human embryo from fertilization to birth.
    5·2 answers
  • Plasmodial slime molds are characterized by:
    5·1 answer
  • Use the diagram below to answer the following questions for 1 point each:
    14·1 answer
  • I need to know what is the answer for number 6 and 7 and that’s all
    13·1 answer
  • In the Northern Hemisphere, climate scientists observe seasonal changes in carbon dioxide concentration with the highest levels
    15·1 answer
  • What is living organ with example??<br>​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!