Answer: Gametes.
- A Gametes
- B plain zygotes
- C the fixed spores
- D only somatic cells
Correct answer: A. Gametes
Explanation: The haploid reproductive cells that fuse are called gametes.
Structure of a mature flower. Image: LadyofHats (Mariana Ruiz), Public Domain, via Wikimedia Commons.
Concept context
Asexual and sexual reproduction, flower anatomy, pollination, fertilization, and seed development.