It is useful for an ecologist to identify the keystone species in an ecosystem because the keystone species is important to maintaining the stability of an ecosystem, and any changes in the keystone species population shows that there is changes in ecosystem health.
Answer:
Lipids
If i were to guess, without any answer choices, I would say that we get out energy from carbohydrates, and we store energy in lipids, so Lipids (being long chains) might have the most energy.
Explanation:
Please tell me if this is wrong, I did not have much to work with without any answer choices, and this was very broad. :)
Invasive species depopulating Native species.
Answer:
The hare population would most likely undergo logistic growth.
Explanation:
If conditions for them improved, the hare population would undergo an exponential growth. Then the lynx population would rise to match the exponentially growing numbers of hare. They would eat more hare and populations would stabilize at carry capacity limit.
Their populations fluctuate, one after the other, in a predictable way: when the snowshoe hare population increases, the lynx population tends to rise.