dramaticllama dramaticllama

03-03-2016
Physics

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Which of the following events happens first in the development of a new organism? A. A sperm fertilizes an egg to form a zygote. B. A morula is formed. C. A blastocyst implants into the uterine wall. D. A zygote undergoes mitosis.

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Аноним Аноним

03-03-2016

The development of a new organism begins with answer A, the sperm must fertlize an egg to form the zygote.

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mahyahm23 mahyahm23

04-09-2018

Definitely the answer is A

This process called Fertilization

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