The answer is: A- climax community
A dominant trait can be shown both when an organism is homozygous dominant AND heterozygous. Two different genotypes give the same visible result so a testcross is needed to be able to accurately say if the organism is homozygous dominant or heterozygous
The experimental group is the group you change from the normal. the fertilizer group is experimental
Nucleus has genetic material (DNA) inside it, so it commands the cell about how it has to be function......