Animal Classification Flashcards

Grade 3 · Science · Flashcards

Study the vocabulary and groups used to classify animals.

Flashcards

classification: Sorting living things into groups based on shared traits
vertebrate: An animal that has a backbone (spine)
invertebrate: An animal that does not have a backbone
mammal: A warm-blooded vertebrate with hair or fur; mothers nurse young with milk
bird: A vertebrate with feathers, a beak, and wings; lays eggs
reptile: A cold-blooded vertebrate with dry, scaly skin; mostly lays eggs on land
amphibian: A vertebrate with moist skin that lives both in water and on land
fish: A cold-blooded vertebrate that lives in water and breathes with gills
insect: An invertebrate with six legs, three body segments, and usually wings
exoskeleton: A hard outer covering that supports invertebrates like insects and crabs
warm-blooded: Able to maintain a constant body temperature regardless of the environment
cold-blooded: Body temperature changes with the environment; cannot regulate own temperature
species: A group of animals that can breed with each other and produce offspring
characteristic: A feature or trait used to identify and classify an organism