The answer is C because it’s something that can be caused by speciation, not can cause it
I'm pretty sure they are reffering to Alzheimers.
The windward side faces the prevailing, or trade, winds, whereas the island's leeward side faces away from the wind, sheltered from prevailing winds by hills and mountains. Here is only some characteristics.
The scientific definition of evolution refers to changes in a species or population over time.
Evolution is a long-term process. It may take millions of years and several generation for an evolution to occur. The cause of evolution can be genetic as well as environmental. The evolution is a result of mutation. Evolution generally gives rise to new species, that is different from its ancestral population.
Population is a group of similar type of organisms. These organisms live in the same habitat, require same resources and have same kind of habits. The most essential criteria that defines a population is that the organisms of a population can mate with each other and produce offspring.
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