You are presented with the question "What involves a sperm and egg fusing to form a diploid zygote?" and the following answer choices: 
- Leptospirosis
 - produce offspring
 - allow growth
 - sexual reproduction
 - metabolic reaction
 - peachleaf willow
 - rapid expansion
 - Plant reproduction

Now knowing that fertilization occurs when a sperm and an egg fuse to form a diploid zygote and sexual reproduction requires formation of gametes, followed by fertilization, choose the best answer.


 

    sexual reproduction     