Explanation:
What happens during daytime is, oxygen that gets trapped between filaments of algae, moves them to the surface and during night as O2 is not produced, they slowly sink to lower depths, and you don't see them
Answer:
d they do not produce a protein
Explanation:
There are four main types of noncovalent bonds in biological systems: hydrogen bonds, ionic bonds, van der Waals interactions, and hydrophobic bonds. The bond energies for these interactions range from about 1 to 5 kcal/mol.
D. It’s filters the blood that is used by the excretory system.
