The haploid cells in the human body are sperm cells and egg cells, also known as gametes.

Here's why:

* Haploid means having only one set of chromosomes.

* Sperm cells and egg cells are produced through a process called meiosis, which reduces the number of chromosomes in a cell by half.

* When a sperm cell and an egg cell fuse during fertilization, they combine their haploid chromosomes to form a diploid zygote with a full set of chromosomes.

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