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11-05-2018
Biology

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What is a blastula? a solid ball of cells. a long sheet of cells. a hollow ball of cells. a hollow tube of cells.

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11-05-2018

an animal embryo at the early stage of development when it is a hollow ball of cells.

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10-03-2019

Answer: a hollow ball of cells

The blastula s a hollow sphere of cells, referred to as blastomeres, surrounding an inner fluid-filled cavity called the blastocoele formed during an early stage of embryonic development in animals.

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