Which structure fuses to form a diploid zygote sexual reproduction

Two haploid cells ( sperm and ova).

Explanation:

Sexual reproductions may be defined as a type of reproduction in which two parents are involved in the reproduction. Sexual reproduction brings genetic variation in the offspring.

The male gamete (sperm ) and female gamete (ova) fuse together to form a zygote. The gametes are haploid in nature and the product formed by their fusion is diploid in nature, zygote. In case of humans, male gamete are motile and female gamete are non motile.

Thus, the answer is two haploid cells ( sperm and ova).

amber has allowed scientists to study dna that has been preserved over millions of years.

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.