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Boi test#3

Reproduction and developement

QuestionAnswer
After zygote begins to divide. A solid ball of 16- 32 cells. Morula
a hollow ball of cells a single layer thick produced by the pressure of cells on one another Blastula
More rapid division of cells at one end of the blastula causes an inpocketing or involution known as Gastrula
Gives rise to skin and nervous system Ectoderm
becomes the lining of digestive and respiratory tracts, parts of the liver and the pancreas, and the bladder lining Endoderm
Develops into the muscles, skeleton, circulatory system, excretory system (except bladder lining), gonads, and the inner layer of skin (dermis) Mesoderm
Created by: melaniemolina00
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