Answer:
tree > insect > frog> snake> hawk
Explanation:
I think the best answer is B) nonnative species introduction. Hope this Helps!
So following the octet rule, carbon atom can only form a maximum of 4 bonds because, by then, it will have 8 valence electrons.
Answer:
7
Explanation:it takes one year for the earth to orbit the earth and there are four seasons.
The answer could be the fact that all species posses 23 universal proteins. These proteins vary slightly in some DNA sequences but are pretty much the same. These proteins are responsible for tasks such as DNA replication and translation from DNA to proteins. These activities are crucial to all forms of life. The presence of these universal proteins suggest that modern life evolved from a single common ancestor.