​Sharing the same aspect and/or qualities.

unity

​Many different kinds of organisms.

diversity

​The grouping of objects by degrees of complexity, grade, or class.

hierarchy

​Organisms that drift or swim weakly, unable to move consistently against waves or currents.

plankton

​Independent swimmers that can choose to go different places in the water.

nekton

​Organisms that live at the bottom of the ocean.

benthos

Animals that live on the seafloor.

epifauna

​Plants that live on the seafloor.

epiflora

​Animals that live inside the sediments on the seafloor.

infauna

​Organism that does not have a nucleus within its cells.

​​prokaryote

​Organism that does have a nucleus within its cells.

​​eukaryote

​The study of biological classification.

​​taxonomy

​All life is classified into one of three categories, or domains.

​​domain

​The three domains are separated into 6 kingdoms, or categories, of life.

​​kingdom

​Organisms that live in extremely hot or corrosive environments where other organisms cannot survive.

​​extremophile

​An organism name that varies greatly due to regional preference and different languages.

​​common name

​An organism's genus and species given together that is the same everywhere in the world.

​​scientific name