Commensalism is a symbiotic relationship where . A. both species benefit

B. one species benefits and one is unaffected

C. one species benefits and the other is harmed

This is a coral reef ecosystem. many biotic and abiotic factors affect the health of this ecosystem. which set correctly pairs a biotic factor and an abiotic factor?

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.

How does an angiosperm prevent self pollination