The diagram shows a sponge. What is the function of the structures labeled X?

providing protection from predators
fertilizing eggs
filtering and digesting food
stinging prey

Why does the skin of your finger shrink when you wash clothes for a long time?

Mike has a problem with his testosterone. he is unable to produce enough. which will most likely be affected by his inability to produce testosterone? check all that apply.

Actinobacteria sp. are fermenting organisms (which do you use oxygen to breathe) referred to as chemoorganohetereotrophs this means they break down organic material and convert it to inorganic material. which part of the carbon cycle does this describe