D. 25. A monohybrid cross is
A. a cross of pea plants
B. a cross of two different traits.
C. a homozygous pure dominant
D. a cross of one trait such as height.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

the growth of the plants is affected by the heat of the light. what is the student doing?