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What is a bastula?
a hollow ball of cells. novaNET
What is a hollow ball of cells that develops after the fertilization of the egg?
it is called a blastocyst
How many cell cell layers are found in a bastula?
A blastula typically consists of a single layer of cells called the blastoderm. This layer forms during early embryonic development and surrounds a fluid-filled cavity called the blastocoel.
What forms from the three layers of the gastrula?
The primary germ layers (endoderm, mesoderm, and ectoderm) are formed and organized in their proper locations during gastrulation. Endoderm, the most internal germ layer, forms the lining of the gut and other internal organs. Ectoderm, the most exterior germ layer, forms skin, brain, the nervous system, and other external tissues. Mesoderm, the the middle germ layer, forms muscle, the skeletal system, and the circulatory system.
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