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Biology 8 Online
OpenStudy (anonymous):

Anne has been observing human embryos in different stages. She wants to study the gastrula phase. How will she find it? a) by looking for the presence of the neural tube and the notochord in the embryo b)by looking for the presence of the germ layers and the primitive gut in the embryo c)looking for the presence of the heart and lungs in the embryo

OpenStudy (anonymous):

B

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