The keystone species is the one at the bottom of the pyramid, if we look at it like a pyramid. If the grass dies, then the deer cannot get food and die, and the predator cannot eat and dies, and the whole ecosystem can fall apart.
<span>Carbon-based macromolecules are found in all life forms.</span>
Organisms on a island are more similar to those on a nearby land mass than to those in similar climates further away.
<span> i think it's the gene pool</span><span>
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Answer:
saturated fats are solid at room temp
