3
Q:
A) an egg | B) sperm |
C) flagella | D) blastula |
Answer: D) blastula
Explanation:
Explanation:
Fertilization is the process in which a single haploid sperm fuses with a single haploid egg fuse to form a zygote.
An animal zygote under go mitosis and divides to form a hallow ball of cells called blastula.