The photic zone

a.

extends to the bottom of the open ocean.

b.

extends to a depth of about 200 meters.

c.

is deep, cold, and permanently dark.

d.

is where chemosynthetic bacteria are the producers.

Evolution towards similar characteristics in unrelated species

What gases are exchanged in the lungs during breathing?

Hydrilla is an invasive species in Florida. Explain why it is considered an invasive species and how biologists try to control it in Florida ecosystems.

How do wetlands form? Tributaries flow into rivers. Runoff travels down the side of a divide. Water builds up in a depression left by an ice sheet. Groundwater comes to the surface and floods the land.

Food provides calories needed by the body for energy. However, the body must use energy between meals when food is not consumed.

What are the 3 functions of the membrane proteins?

Which could be classified as part of an ecosystem but not part of a community trees, grasses, bacteria, minerals

Which is not a characteristic of amniotic sac

What does the nucleus of a human lymphocyte contain? A. Only the genes to produce a specific antigen B. Only the genes to produce a range of antibodies C. Only the genes that control the growth and development of a lymphocyte D.

What is the functions for chloroplast