Vhat function does the cytoplasm perform in plant and animal cells? A. It directs cellular activity.
B. It holds the cell organelles.
C. It forms a cellular boundary.
D. It makes proteins for the cell.

Tlymphocytes mature in the? a. thyroid gland. b. bone marrow. c. spleen. d. thymus.

Liquid water turns into water vapor at which step in the water cycle

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer