3. how are excretion and homeostasis connected?
o a. cells are able to maintain homeostasis by excreting materials.
o b. cells are able to maintain excretion through homeostasis,
o c. when cells excrete materials, they remove them from the cell.
o d. excretion and homeostasis are not similar.

A. Cells are able to maintain homeostasis by excreting materials.

Explanation:

Homeostasis is the ability to maintain stability of our body by the removal of waste products from the body by the process of excretion. Homeostasis maintains blood pressure, blood glucose level,levels of electrolytes such as Na+,K+ etc.

Excretion is the removal of byproducts ,excess of water and salts such as sodium,potassium,uric acid, etc from our body. If excretion doesn't takes place these materials will retain in the body itself  it may cause disturbance in homeostasis.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

c. is the correct answer