Question

Which does not describe a major difference in the growth of plants versus the growth of animals?

Select one:

a. Plants can grow by producing additional phytomers; animals grow by enlarging.

b. A baby plant has fewer phytomers than an adult plant; a baby animal is smaller than but almost identical to an adult animal.

c. Some plant growth is determinate; all animal growth is determinate.

d. Plants undergo both primary and secondary growth; animals undergo only primary growth.

e. Plants grow by producing new cells from their apical and lateral meristems; animals grow by producing new cells in many different regions of their bodies.

Answer 1

1.Which does not describe a major difference in the growth of plants versus the growth of animals?

Answer: Some plant growth is determinate; all animal growth is determinate.

In determinate development, fate of each cell in the adult organism is has already been determined. In determinate development the fate is finite. Determination is an irreversible commitment. It can differentiate autonomously in a neutral environment. If we place a determinate cell in another environment, it will grown its own development.

Some animals show indeterminate development. Protostomes shows usually determinate development after a particular stage of development, but deuterostomes show indeterminate development. In eight celled stage the deuterostomes cells remain capable of developing as a complete organism.

All animal growth is not determinate. Some plant growth is determinate and some animal growth is determinate.Not all animal growth is determinate.