A zygote is a(n) _____.
A) human sex cell
B) fertilized egg cell
C) unfertilized egg cell
D) process of cell division
Question 2
A male is considered to be sterile if he produces less than how many spermatozoa in one ml of seminal fluid?
A) 20 million
B) 50 million
C) 100 million
D) 150 million