Question 1
When the zygote consists of about 100 cells and looks like a hollow ball, it is called a(n)
◦ fertilized egg
◦ embryo.
◦ fetus.
◦ blastocyst.
Question 2
Which is the longest stage of labor?
◦ the first stage
◦ the second stage
◦ the third stage
◦ all three stages last about the same length of time