I think it is keystone. If they were not there the population of urchins would go up and the kelp would go down.
I believe the answer is a deep oceanic trench. Hope this helped! <3
Hey there :)
Energy is released when a phosphate group is removed from ATP
Your answer will be option B
Answer:
1. Bureau of Land Management
2. US Fish and Wildlife Service
3.US Forest Service
4. Bureau of Land Management
5.National Park Service
Explanation:
Explanation:
The two main types of exocrine secretory cells of the stomach are parietal cells and chief cells. Parietal cells secrete hydrochloric acid and chief cells secrete digestive enzymes such as pepsin