Which phrase is not an example of intercellular communication? O a vesicle encloses over a nutrient molecule
o electrical signals pass between heart cells
O chemical messengers dock onto receptors of adrenal gland
O chemical signal from pituitary gland to adrenal gland

PLEASE HELP URGENT

In which of the following ways is the function of the surface of a microsphere similar to the function of an actual cell membrane? a.both make it possible for the conditions in the interior to be different from the conditions outside. b.both provide a barrier that keeps water from flowing across it so the interior remains dry. c.both separate the rna that forms in the interior from any rna that might form in the environment. d.both can actively move molecules into the interior or out into the surrounding environment.

What do all macromolecules have in common with each other? oa. they all are formed from the same elements.ob. they all have major roles in cell membranesoc. they all act as catalysts in the body.od. they all have peptide bonds between carbon atoms.

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.