Question

for reproduction to occur, how many cells must be present?
1 - one male cell or one female cell
2 - one male cell and one female cell

Explanation:

The question relates to sexual reproduction, which requires the fusion of a male gamete (e.g., sperm) and a female gamete (e.g., egg) to form a zygote. This process needs two distinct cells (one male, one female).

Answer:

2 - one male cell and one female cell