Front

A vertebrate that starts in water and lives partly on land.

Back

amphibian

Front

A vascular plant that produces seeds in flowers

Back

angiosperm

Front

Tiny single-celled organisms without a nucleus

Back

Bacteria

Front

Invertebrate with radial symmetry, saclike body, true mouth, and ability to digest food.

Back

cnidarian

Front

Tool for identifying organisms using contrasting characteristics.

Back

dichotomous key

Front

Kingdom of organisms with a nucleus that decomposes others.

Back

fungi

Front

A vascular plant that produces seeds in cones, not flowers or fruit.

Back

gymnosperm

Front

Animal without internal skeleton or bones

Back

invertebrate

Front

Broadest level of biological classification

Back

kingdom

Front

Lacking a water transport system

Back

nonvascular