What is the main purpose of aquaculture? a) to develop new species of animals. b) to provide a food source for humans. c) to preserve the aquatic environments. eliminate d) to ensure that breeding populations are maintained.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

the principle of segregation describes how pairs of gene variants are separated into reproductive cells. from his data, mendel formulated the principle of segregation. we now know that the segregation of genes occurs during meiosis in eukaryotes, which is a process that produces reproductive cells called gametes.