The first one, it controls the physical traits of an organism. Good luck, hope this helps!
I think it is repeatable, testable, observable
Try using your on opinion and see what you can come up with and good luck
The answer is "<span>B: all the gray squirrels that live in a forest" </span>
The fertilizers used by farmers can have negative effects on aquatic ecosystems because there is every possibility that the runoffs from the fields can create an algal bloom in the nearby water body. This algal bloom can have a very negative effect on the living organisms of the aquatic body. I hope it helps.
