How do carrier proteins recognize substances to transport in active transport A. They will allow any substances to pass

B. That have specific binding site for the substance

C. They have a lore that only the substances will fit through

D. The substance recognizes the carrier protein.

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.

it is a. i hope this .

answer; the male's sperm cells have mitochondria, but because the sperm contributes dna but no cytoplasm, no mitochondria are passed to the egg at ferilization;