Packet 4: Bonus 7

When this process occurs in amphibians, bottle cells undergo rapid apical constriction and elongation. For 10 points each,
[10h] Name this process in which a blastula transforms into a structure with three germ layers.
ANSWER: gastrulation
[10e] The endoderm, the innermost germ layer, develops partly into the tract of this bodily system, in which it becomes the lining of bronchi and alveoli.
ANSWER: respiratory system [accept lungs]
[10m] During and immediately following gastrulation, the neural tube forms with the guidance of the notochord, a scaffold found exclusively in this phylum. It is the largest phylum of deuterostomes.
ANSWER: Chordata [accept Chordates]
<Rohan Ganeshan, Science- Biology> | VAULT II Packet 04

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