Sea urchin and amphibian gastrulation both involve the migration of cells into the blastocoel. Question 16 options: TrueFalse
Added by Christopher L.
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Gastrulation is a crucial phase in embryonic development where the single-layered blastula reorganizes into a multi-layered structure called the gastrula. This involves significant cell movement and differentiation. Show more…
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Adi S.
Which statement about gastrulation is true? a. In frogs, gastrulation begins in the vegetal hemisphere. b. In sea urchins, gastrulation produces the notochord. $c .$ In birds, cells from the epiblast move into the blastocoel through the primitive groove. $d$. In mammals, gastrulation occurs in the hypoblast. $e .$ In sea urchins, gastrulation produces only two germ layers.
Which statement about gastrulation is true? a. In frogs, gastrulation begins in the vegetal hemisphere. $b,$ In sea urchins, gastrulation produces the notochord. $c .$ In birds, cells from the surface of the blastodisc move down through the primitive groove to form the hypoblast. $d$. In mammals, gastrulation occurs in the hypoblast. $e .$ In sea urchins, gastrulation produces only two germ layers.
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