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There are 5 prezygotic isolating mechanisms. These are...Mechanical Isolation, Temporal Isolation, Behavioral Isolation, Habitat Isolation, and Gametic Isolation. You may also see Geographical Isolation, Ecological Isolation, or even Time.
ANSWER:
Look at your options and choose the one that I HAVE NOT listed.
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Answer:1) heat from when the planet formed and accreted, which has not yet been lost; (2) frictional heating, caused by denser core material sinking to the center of the planet; and (3) heat from the decay of radioactive elements.
Explanation:
I think it's XAXA and XAXa because x-linked rec. usually is only fully present in males
Omnivore is the type of consumers is the most stable in an ever changing environment.
Omnivore are organisms that eats both plants and meat. Thus, either ways they can live with the absence of meat nor plants.