The __________ is the outer germ layer:
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In which choice are the entries listed from smallest to larg…
In which choice are the entries listed from smallest to largest?
An example of Nondisjunction is:
An example of Nondisjunction is:
The components of semen include:
The components of semen include:
The development of a zygote into a blastula is called:
The development of a zygote into a blastula is called:
The ectoderm layer eventually develops into the:
The ectoderm layer eventually develops into the:
The ovum is surrounded by the corona radiata which contains:
The ovum is surrounded by the corona radiata which contains:
In humans, the _________ facilitates implantation into the u…
In humans, the _________ facilitates implantation into the uterine wall.
The human zygote goes through many cell divisions while trav…
The human zygote goes through many cell divisions while traveling to the uterus. The zygote has ________ chromosones in each cell nucleus.
The trophoblast produces _________, which maintains the corp…
The trophoblast produces _________, which maintains the corpus luteum and prevents menstruation.