Answer:
An increase in capillaries helps to increase healing by improving blood flow to the site of injury. Improving blood flow provides muscles with an increase in oxygen that gives muscle energy and so reduces muscle fatigue and weakness. An improvement in blood flow also supplies muscles with an increase in nutrients.
Diffusion, the most widely-used mechanism, allows the flow of small molecules across capillaries such as glucose and oxygen from the blood into the tissues and carbon dioxide from the tissue into the blood.
Answer: I believe it is B
Explanation:
A because a has nothing to do with what scientists think about other people
C some people may think that but we are focusing on what the scientists believe
and D people don't always fail that says they will no matter what
and that is why I believe B is the best answer
Study Unit needs self checks
It is an embryo because a zygote is just a cell and it turns into a fetus after 8 weeks
