Answer:
Biology is a branch of science that deals with living organisms and their vital processes. Biology encompasses diverse fields, including botany, conservation, ecology, evolution, genetics, marine biology, medicine, microbiology, molecular biology, physiology, and zoology.
<span>An operon is an arrangement of genes consisting of an operator, a promoter, and a repressor.</span>
I believe the correct response would be D. Are not composed of one or more cells.