Answer:
A. A tropical rainforest
Explanation: Because its a nice climate and that will make homes for many diffrent kinds of spicies that can survive in that type of environment.
Nonsense mutations make stop codons. If the mutation is towards the beginning of a gene, then the protein that gets created will be cut short and not function properly. But if it was towards the end, there is still a chance that the protein will still be able to work.
The amount of sleep you get is the independent variable because it does not depend on the scores on tests
