yes, coral polyps are a keystone species. it would be a keystone species because it is important in order for the coral to thrive.
Equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi or
Um, what are you asking that my view is on? I could give you my view but I'm not sure what you are asking.
The hawk would get the least energy because it is at the top of the food chain, and 90% of energy is released into the environment on each level
Answer:
b, a, d, a.
Explanation:
l think the first and second are write but 3 and 4 I'm not sure.