Kelp can be described as <span>fast growing algae. The correct option among all the options that are given in the question is the fourth option or option "d". It is a unique kind of an algae that has the capability to grow 2 feet in a day under right conditions. I hope that this is the answer that has come to your great help.</span>
They are considered organic molecules because the monomer which make proteins are amino acids which are organic compounds.
(of an immature or stem cell) capable of giving rise to several different cell types.
Cyclic phosphorylation is a kind of phosphorylation in which ATP is formed from an ADP when phosphate group is attached to it during light reaction of photosynthesis.