Aerobic or anaerobic atp exchange <span />
Answer:
C. genetic
Explanation:
It looks at the gene pool of specific species in an environment.
Answer:
A. have a backbone
Explanation:
You can simply use the process of elimination for this. We know that tuna have a backbone, so that is an option. We know they lay eggs, so B isn't an option. As far as C, every living thing is made up of cells, including the lamprey, so it isn't that. Finally, tuna don't live on land. The only one left is A.
