Biological Terms from Greek

Taxonomy: The classification of living and extinct organisms

From TAXIS (arrangement) and NOMOS (law)
The Laws of Arrangement of Life Forms

Morphology: Study of animal structure

Photosynthesis

Autotrophic: make their own food

Heterotrophic:  use other organisms as food

Homeostasis: signifies the state of balance that is maintained in an organism

Genus

Species

Analogous: features, like the wings of a bee and a bird, have similar functions but do not share the same origin

Homologous: features, like the wings of a bird and a bat, have a common origin. Both kinds of wings developed from the forewing of a common ancestor.

Protozoans: single celled animals

Metazoans: multi-cellular animals