Countercurrent exchange in the fish gill helps to maximize .

a. endocytosis

b. active transport

c. osmosis

d. extraction of oxygen from the water

e. blood pressure

What can be found in every skeletal muscle? a. nerves, bones, cartilage, and connective tissue b. tendons, cartilage, nerves, and blood vessels c. muscle fibers, nerves, connective tissue, and blood vessels d. tendons, nerves, blood vessels, and bones

The chemical form of energy that is useable by the cell to do work

Casts and mold are a type of preservation where the original material decays, leaving a mold in surrounding rock that can be filled with another sediment a. true b. false