These are scientists who study the interaction of organisms with one another and with their environment.

It is the part of the Earth that supports life.

It refers to a group of organisms that share general physical characteristics, interbreed and produce offspring.

It is the union of an egg cell and a sperm cell.

It is the process in which a new plant grows and sprouts from a seed.

This is a type of fertilization that takes place outside the body of the female organism.

It is a type of asexual reproduction wherein a new organism grows by cell division on the body of its parent.

It is a type of reproduction that involves two parents and the union of reproductive cells.

This term refers to organisms that has both male and female sex organs.