I believe the example of an environmental variation in the above question is, A. Marge dyes her hair blue. Variation represents any difference between cells, individual organisms, or groups of organisms of any species caused by either genetic differences or by the effect of environmental factors. Environmental variation is the ability of an organism to alter its phenotype depending on environmental conditions.
I believe it is D as it is a better answer than D because of the fact that the statement does not explein the age of her grandmother "old" is just drawing a conclusion off nothing, and it does not say that she does not like her at all , thus it is an incorrect statement . So the answer is D.
Answer:
11: Independent variable
12: Sink
13: Depends on whether your teacher will let you play once a lesson is over but in most classrooms I would say it is not allowed
14:Theory
15: Objective
16: 3
Explanation: