Which molecules prevent cell membranes from dissolving in water?

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus

The chromosomal structure that limits the number of cell divisions of a cell is the the chromosomal structure that limits the number of cell divisions of a cell is the kinetochore telomere histones centromere