As a zygote moves down the uterine tube, it undergoes a series of ...

[robinn137]

As a zygote moves down the uterine tube, it undergoes a series of rapid mitotic divisions that result in a hollow balllike mass of cells called a(n) ___________________ _
 Fill in the blank(s) with correct word

Question 2

The cyclical shedding of the lining of the uterus in response to changes in hormonal levels is called ___________________ _.
 Fill in the blank(s) with correct word

[allisonblackmore]

Answer to Question 1

blastocyst

Answer to Question 2

menstruation

[robinn137]

Both answers were spot on, thank you once again

[allisonblackmore]

Great! Please up vote