What is true about the structure or function of the plasma membrane? A. The double layer prevents anything from entering the cell.

B. Hydrophilic molecules attract the water the cell requires.

C. The processes of endocytosis and exocytosis occur here.

D. It is made entirely of integral proteins.

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red.b) the pollen grains will be pure blue.c) the pollen grains will have red interiors and blue exteriors.d) the pollen grains will have blue interiors and red exteriors.

What organ systems are working to you cool down after a workout?

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?