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Eminoa Eminoa
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7 years ago
When does a zygote become a multicellular creature?
  a. at fertilization
  b. when cleavage begins
  c. when organs begin to form
  d. when the heart begins beating
  e. at birth

Question 2

How many days after fertilization does the zygote become a ball of cells?
  a. five days
  b. four days
  c. one to two days
  d. six to eight days
  e. it depends on the age of the mother
Textbook 
Human Biology

Human Biology


Edition: 10th
Authors:
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oliverb1oliverb1
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7 years ago
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Eminoa Author
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#2
7 years ago
Just confirmed the same answer from my friend, thanks
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