객관식
Which of the following extraembryonic membranes functions in gas exchange and encloses a chamber for the deposition of wastes of a bird embryo?
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20. Development
Animal Development
Multiple Choice
During the development of most animals, cleavage leads to __________.
A
the formation of a zygote
B
the formation of a gastrula
C
fertilization
D
metamorphosis
E
a multicellular blastula
검증된 단계별 안내1
Understand the process of cleavage in animal development: Cleavage is a series of rapid cell divisions that occur immediately after fertilization.
Recognize that cleavage transforms a single-celled zygote into a multicellular structure.
Identify the stages of early embryonic development: zygote, morula, and blastula.
Note that the blastula is a hollow ball of cells formed after the cleavage stage, marking the end of cleavage.
Conclude that during the development of most animals, cleavage leads to the formation of a multicellular blastula.
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