Genotype is not the only thing that effect phenotype because you have environment effects as well that can cause a vary of things.....
C is your answer :)
And also C and D are true but its C.
This question is on Yahoo Answers
Answers
1. True
2. True
3. True
4. True
5. True
The answer would be an Ecologist
Prokaryotes are single celled organism that lacks a membrane bound nucleus, mitochondria, or any other membrane bound organelle. Examples of prokaryotes include all single-celled organisms, most of which are bacteria. The principle ecological role of prokaryotes is to break down organic matter.