What involves a sperm and egg fusing to form a diploid zygote?\nOptions:\n- (A) Leptospirosis\n- (B) produce offspring\n- (C) allow growth\n- (D) sexual reproduction\n- (E) metabolic reaction\n- (F) peachleaf willow\n- (G) rapid expansion\n- (H) Plant reproduction
Let's be accurate as possible. Think before you answer.
(D)
Fertilization occurs when a sperm and an egg fuse to form a diploid zygote.

Sexual reproduction requires formation of gametes, followed by fertilization.

Sexual reproduction involves a sperm and egg fusing to form a diploid zygote.

.

The final answer: (D)