Answer the following question given this paragraph: Sexual reproduction involves two parents. It produces offspring that are all genetically unique. It requires the production of haploid gametes. The union of gametes is called fertilization. It results in a diploid zygote. Q: The union of gametes is called? A:
Choices:
(1). pollination;
(2). migration;
(3). fusion;
(4). fertilization;
Answer:
(4).