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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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adrii01 adrii01
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10 years ago
After fertilization, embryonic development progresses through three stages:

cleavage, during which the zygote develops into a blastula through extensive cell division;

gastrulation, during which three tissue layers are established by the dramatic rearrangement of cells, forming a gastrula;

organogenesis, during which the rudiments of organs develop.

The details of embryonic development vary by species, but the developmental sequence is consistent. Embryonic development has been studied extensively in a few species, including sea urchins, frogs, and chickens. All the images in this tutorial are based on frog development.

Part A - Differentiating between cleavage, gastrulation, and organogenesis

Determine which terms, phrases, and images describe each phase of development.

Drag each item to the appropriate bin.
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katyamashokhakatyamashokha
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10 years ago
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adrii01 Author
wrote...
#2
10 years ago
thank you!!
tekamp,  thuglyfer
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#3
10 years ago
Thank you Slight Smile
wrote...
#4
4 years ago
thank you Wink Face
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