<span>The answer that is seemingly true, based on the information given, is: Those that preys on blue crabs would opt to a new prey changing the food web. This occurrence was the reason why some of the organisms die because of the decreased number of blue crabs.And eventually, those that are preyed on by the blue crabs would likely to grow their size.</span>
Animals such as cows, horses, sheep, goats, and termites have symbiotic<span> bacteria in the intestinal tract. These</span>symbiotic<span> bacteria possess the necessary enzymes to digest cellulose in the GI tract.
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Speciation is the process by which new species form. It occurs when groups in a species become reproductively isolated and diverge. In allopatric speciation, groups from an ancestral population evolve into separate species due to a period of geographical separation.
I think protocells may be the answer