The correct answer is E. Algae and Fungi
Explanation:
In biology, some groups of organisms are exclusively unicellular which means all organisms of the group are made of one cell, some are exclusively multicellular which means all organism are made of two or more cells and in some cases in a group there can be both single-celled and multicellular organisms which occur in both algae and fungi. Indeed, in these two groups, there are unicellular organisms as Chlorella (algae) or yeast (fungus) that contain only one cell and multicellular organisms such as Kelp (algae) or regular mushrooms (fungus) that are both multicellular. On the other hand, protozoa only contain unicellular organisms. This means the groups that contain single-celled and multicellular organisms are algae and fungi.
Answer:
c. the abyssal plain contains the most biological diversity and the majority of all sea life because it is the ocean bed.
The statement "When levels of the amino acid are high, it binds to the repressor, allowing synthesis of this amino acid to proceed" (A).
E. coli needs amino acids to survive. It can ingest the amino acid, Tryptophan from the environment. When the levels of Tryptophan are low, it can synthesize Tryptophan by using enzymes that are encoded in five genes. These genes lie next to each other in the tryptophan operon. If tryptophan is available in the environment, E. coli will not synthesize it.
