The answer is C) researchers employed by the environmental protection agency
Explanation:
the name porifera means pore bearer in latin. a sponges body is covered by a skin, one cell thick. this skin has lots of small pores ad a few large openings. the small openings are the entrances to a complex system of channels. these collar cells pump water through the entire sponge and filter out food for the sponge cell to eat
Answer:
pancreas
Explanation:
beta cells of the pancreas produce insulin
Answer:
relief rainfall occurs when warm moist air from the atlantic ocean rises up over mountains when the warm air rises it cools and condenses to form clouds which bring rain.