The mechanism of evolution proposed by Darwin is a gene pool. It alludes to the adjustments in allele frequencies inside a solitary populace. Allele frequencies in a populace may change because of four central strengths of advancement. Evolution is the procedure by which present-day life forms have plunged from old progenitors.
A habitat left unoccupied by native herons and egrets met the biotic and abiotic requirements of the cattle egret transplants and their descendants
Answer: Option B
<u>Explanation:</u>
The cattle egret was a species of Heron to be first seen in Greater Caribbean Basin. They acquired their name “Cattle egret” as they were found to be co-existing with the grazing cattle and feeding on the insects that come out during grazing and also feed on the ticks present on the cattle’s body.
The cattle egret within a span of few years showed a dramatic increase in its population. This was attributed by their high reproduction rate leading to their extensive population growth. They also do not have any predators devouring them. They also feed on anything and everything to survive be it insects, rodents or small reptiles. They were good flyers and they were also able to get accustomed to their surroundings and reproduce.
An example would be us humans we captive breed them then kill them. So they could adapt and avoid the predator but still get hunted down.
Answer: B.
Explanation:
It's not A, because earthquakes happen at different magnitudes depending on how the plates shift beneath them.
It's not C, because tectonic plates are scattered among the earth.
It's not D, since the pattern of earthquakes are dependent on the shifts of tectonic plates.
It's B because tectonic plates are the reason earthquakes happen. Everytime they shift or move, an earthquake occurs. There may be some earthquakes that are not near tectonic plates but the majority are, which is why the question uses the word "generally occur."
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