Answer:
1 pretty sure its A and 2 i think its B
Explanation:
An Organisms position within a food web is known as D. Trophic Level. Hope I could help!
Answer:
A
Explanation:
It makes the most sense and if i remember that is a chain reaction.
Answer:
Honestly i think that its Richness because its good to have a good amount of different species so that there is a good number of animals to create a food chain. The amount of animals in a population is important but its more important to have a variety of different animals so that all the populations have other animals to eat or survive off of.
Explanation:
Purines have 2 rings pyrimidines have 1 ring.
