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
pogonyaev
3 years ago
8

Which is a problem associated with a declining population size?

Biology
1 answer:
egoroff_w [7]3 years ago
4 0
I would say that it is A
You might be interested in
Question 5 of 10
wlad13 [49]

Answer:

A

Explanation:

although they may evolve, done if the matter will remain the same.

4 0
3 years ago
Which of the following characteristics are true for an action potential?
pickupchik [31]

Answer:

I, II, III

Explanation:

A threshold stimulus is a stimulus that is capable to produce a response in excitable tissues such as neurons and muscle fibers. At threshold potential, the outward movement of K+ and inward movement of Na+ become equal to each other. When the potential exceeds the threshold potential, more and more Na+ enter the cell to depolarize it and to allow the opening of Na+ channels. Therefore, to fire an action potential, the threshold must be exceeded.

Conduction of action potential is all or none phenomenon which means that either it occurs or it does not occur. As an impulse is passed by each successive part of an exon, it enters the refractory period during which there is no conduction of nerve impulse. It ensures the one-way conduction of impulse from the cell body to the axon terminal only.

6 0
2 years ago
Which of the following may be caused by molds?
vichka [17]

<span>The answer is an allergy. The allergy could cause the eyes to be watery and to itch, sneezing and coughing, and a runny nose. This is as a result of the mold fungi releasing numerous spores in the air that enter the airways. Allergy is an immune response to the foreign bodies (spores) that have entered your body. </span>






8 0
3 years ago
Read 2 more answers
The creationist and evolutionist are in agreement on all of the following items except:
nikdorinn [45]
<span>It's the third option.</span>
4 0
3 years ago
Read 2 more answers
In photosynthesis what form of energy is sunlight converted two major reactions that take place
Arte-miy333 [17]
<span>Sunlight emits light energy which is absorbed by the thylacoids in the chloroplasts of a plant. Chloroplasts are organelles in a plant cell whose funtion is photosynthesis (the use of light to make energy). Thylacoids are a part of the chloroplast which absorbs light. The thylaciods convert the light into energy molecules NADPH and ATD. The Calvin cycle then takes place in the stroma (gellatinous matrix of the chloroplast). The Calvin cycle is the use of ATP and NADPH plus carbondioxide to produce starch. Starch is the polysaccharide sugar formed from glucose synthesized in a linear chain. The starch is the storage of the glucose which is used as an energy source for the plant cells. </span>
5 0
2 years ago
Other questions:
  • Cyanobacteria are important to the evolution and advancements of other life on Earth because they
    11·2 answers
  • Please help there’s 3 questions at the bottom left.
    15·1 answer
  • Which is not a combination of innate and learned behavior
    7·2 answers
  • Salt water is denser than fresh water. What ecosystem would be most affected by this fact? Explain your answer
    5·1 answer
  • In natural selection, what must be true of traits that are passed down through generation?
    13·2 answers
  • Cold sores are associated with:
    14·1 answer
  • Would I be able to take this into an exam? (obviously not with all this stuff in it)
    5·1 answer
  • What would happen to hydrogencarbonate indicator if a plant immersed in it was undergoing photosynthesis and respiration at the
    14·1 answer
  • The charaterists jupture nd saturan share
    5·1 answer
  • Which of the following elements is an essential part of organic compounds in his cutest structure and function of any cell?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!