Unit 1

Related species which cannot interbreed because of geographical separation.

A formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms.

Animals of common origin with characteristics that distinguish them from other groups within the same species.

A group of animals categorized primarily by sex and age

Domesticated animals that return to nature to survive and reproduce.

Grouping and arrangement of organisms

animals lacking a backbone.

Specific type of symbiosis between man and animal.

First and largest division of living things - plants and animals

Giving and using of names

Each new group within a Kingdom

Every organism is this (not related to the food chain). To be alive is to be this.

Considered simply a subdivision of a species which breeds true except for minor variations.

Each species is given this, consisting of two Latin words: The first, designating genus is capitalized. The second, designating a subdivision of the genus, is not capitalized. Normally both words are italicized

is what an organism uses to help it obtain food (camouflage, stick, gun, etc.) or to help it conserve energy (shelter, fur, etc.).

A subdivision or smaller part of a group of animals (those in a species)

Those which can interbreed, but in practice do not because of differences in behavior, breeding, food sources, etc.,

• A biological situation in which at least two different kinds of organisms interact; these can include plants, animals, or plant and animal.

On the path to domestication, but a tamed animal is not a domestic animal.

Science of classification and the arrangement of plants and animals into groups based on their natural relationships.

a group within a species or subspecies which differs in some significant inherited respect from other members of the species and is usually fertile with any other member of the species.

animals with a backbone