Which of the following events happens first in the development of a new organism?
a. a...
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Biology, 04.02.2020 21:48 kittylover613
Which of the following events happens first in the development of a new organism?
a. a zygote undergoes mitosis.
b. a sperm fertilizes an egg to form a zygote.
c. a blastocyst implants into the uterine wall.
d. a morula is formed.
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