Final answer:
A haploid cell produced by meiosis in a diploid-dominant organism is called a gamete, which includes sperm and eggs in animals, and is distinct from a zygote, spore, or sporophyte.
Step-by-step explanation:
The name for a haploid cell produced by meiosis in a diploid-dominant organism is a gamete. This is because, in diploid-dominant organisms like most animals, the only haploid cells are the gametes, which include sperm in males and eggs in females. During the process of meiosis, spore mother cells undergo meiotic division to produce haploid spores. These spores can then further develop into the gametophyte stage, which eventually produces gametes through mitotic division. It is after fertilization, when gametes from two different parents unite, that a diploid zygote is formed, thus continuing the life cycle.
The name for a haploid cell produced by meiosis in a diploid-dominant organism is spore. In these organisms, the sporophyte, which is the diploid plant, produces specialized cells that undergo meiosis and give rise to haploid spores. These spores then develop into the gametophytes, which produce the gametes.