Which of the following is the result of gastrulation?
A) A three-layered embryo
B) A blastula
C) A hollow ball of cells
D) The formation of organs
E) A zygote
A
Biology & Microbiology
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What will be an ideal response?
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snail darters
a. dam b. highway c. national park d. overpass
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The major Canadian geological deposit that contains numerous Cambrian animals is the
A. Stomatolite formation. B. Ordovician coast. C. hydrothermal clays. D. Gondwana formation. E. Burgess shale.
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