Based on the description of events, being that the lizard population appears to increase as soon as the snake population decreases, it appears that the snakes prey on the lizards. This suggests that the snake is a keystone species. A keystone species is one that has a dramatic effect on maintaining the balance of an ecosystem. As soon as the snake population decreases, major changes occur to the ecosystem, such as the lizard population increasing.
Therefore, the answer is D: <span>The snake is a keystone species in the ecosystem.</span>
You're right. The Upper Mantle is directly under the Crust. Hope this helped! =^-^=
Answer:
Translation
Explanation:
When assembled in the nucleus, mRNA peels off and moves to the cytoplasm. Here, it attaches to a ribosome. As the mRNA moves along the ribosome its information is translated into the appropriate amino acids which are assembled into a polypeptide.
<span>(1) producers, (2) consumers, and (3) decomposers. hope this helps </span>
