Answer:
A supermassive black hole is a perfectly ordinary black hole that happens to be really, really big.
Answer:
Explanation:the continued existence of organisms which are best adapted to their environment, with the extinction of others, as a concept in the Darwinian theory of evolution. or Those individuals who are the least suited to the environment are most likely to die before leaving offspring.
Answer:
Explanation:
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<span>This is the condition under which he would classify them as belonging to different species - the two salamanders cannot mate to produce a fertile offspring. If these two lizards belonged to the same species, they would normally be able to breed and give birth to a fertile new "child." However, given that they are not of the same species, they cannot do such a thing, which is why this scientist classified them that way.</span>