What's being asked here? I'm personally not sure
Answer:
<em><u>Individual organisms live together in an ecosystem and depend on one another. ... One category of interactions describes the different ways organisms obtain their food and energy. Some organisms can make their own food, and other organisms have to get their food by eating other organisms</u></em>
It has an alternating chemical phosphate and sugar backbone, making the ‘sides’ of the ladder.
The answer for this question is C, I just did my final for Biology and got a good score in it.
Hope it helps!
4. Gene Pool is not a mechanism, thus your answer!
