is the developmental event that results in the formation of a primitive gut and the three tissue layers.
A) Metamorphosis
B) Gastrulation
C) Blastulation
D) Induction
E) Cleavage
Correct Answer:
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Q14: The embryo of a undergoes direct development.
A)
Q15: Early animal embryos are composed of stem
Q16: Which extraembryonic membrane lies immediately beneath the
Q17: What is differentiation?
A) The process in which
Q18: The cells that line the inside of
Q20: The metamorphosis of a caterpillar into a
Q21: In the 1920s, two German embryologists, Hans
Q22: During mammalian development, a
A) morula becomes gastrula.
B)
Q23: At what stage does a human embryo
Q24: At which stage is the human embryo
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