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True or false: Patterns of cleavage of animal eggs is the same among all animal phyla.True false question.TrueFalse

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True or false: Patterns of cleavage of animal eggs is the same among all animal phyla.

True false question.

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Answer

False.

The patterns of cleavage in animal eggs exhibit significant variation among different animal phyla. For example, in mammals, cleavage is generally characterized by a holoblastic pattern, where the egg divides completely. In contrast, some other animals, like fish and reptiles, exhibit meroblastic cleavage, where only a part of the egg is divided due to the presence of a large yolk.

Additionally, different classes within phyla can display varying cleavage patterns. Thus, it is inaccurate to say that cleavage patterns are uniform across all animal phyla; they are influenced by factors such as the amount and distribution of yolk in the egg.

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