Gastrulation results in the formation of which germ layer(s) ?
A) ectoderm
B) mesoderm
C) endoderm
D) All of these choices are correct.
Correct Answer:
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Q171: In which of the following structures does
Q172: Which of the following does NOT occur
Q173: A fertilized, diploid egg is called a(n):
A)gamete.
B)oocyte.
C)ootid.
D)zygote.
E)blastula.
Q174: Which of the following statements about gametogenesis
Q175: Developmentally, which tissue layer divides and produces
Q177: In humans, fertilization usually occurs in the:
A)vagina.
B)cervix.
C)uterus.
D)fallopian
Q178: In humans, sex determination is genetic. Specifically,
Q179: Human pregnancy lasts _ weeks and is
Q180: During what stage of human development does
Q181: Which of the following does NOT occur
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