Which of the following organisms groups was originally considered an animal by zoologists

It is an animal, since plants don't consume other organisms, they get energy from the sun, and plants cant move rapidly at a constant rate

Explanation:

chromosomes carry the genetic information for organisms. also, chromatin is the thread like dna which is located in the nucleus of an organism.

answer; a male inherits only one allele of the x-linked gene controlling hair color;