28. Pregnancy and Human Development
Embryonic Development
Multiple Choice
Multiple ChoiceThe process of implantation generally begins __________ and is usually completed by __________.
A
the day before ovulation; the third day after ovulation
B
two to three days after ovulation; the sixth or seventh day after ovulation
C
six to seven days after ovulation; the twelfth day after ovulation
D
the day after ovulation; the third day after ovulation
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