Fertilization occurs when a sperm and an egg fuse to form a diploid zygote.
Sperm and eggs are cells known as gametes.
Fertilization occurs when gametes fuse to form a diploid zygote.
What occurs when gametes fuse to form a diploid zygote?

A) permineralization
B) rapid expansion
C) competition
D) fertilization
E) photosynthesis
F) chromosomes
G) mutation
H) Leptospirosis