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Development Vocab
na
8
Biology
11th Grade
04/30/2013

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Cards

Term
Fertilization
Definition
joining of sperm and egg
Term
Morula
Definition
embryo at early stage of embryotic development
Term
Blastula
Definition
created by first 5-7 clevage divisions produced by a hollow ball of cells
Term
Gastrula
Definition
2 or 3 layered embryo that gastrulation is hollowed into
Term
Ecotoderm
Definition
forms outer germ layer in late gastrula
Term
Mesoderm
Definition
some animals have a third germ layer between the ectoderm and endoderm
Term
Endoderm
Definition
lines embryonic digestive compartment or tract in late gastrula
Term
organogenesis
Definition
formulation of organs
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