Adaptation. A special trait that helps an organism survive

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A special trait that helps an organism

survive.

Amphibian

A cold-blooded vertebrate that spends part of its life in water and part of its life on

land.

Arthropod

An invertebrate with jointed legs and a body

that is divided into sections.

An adaptation by which an animal can hide by

blending in with its surroundings.

Class

A smaller group within a phylum. Classes are

made up of smaller groups called orders.

Cold-blooded

An animal that cannot control its body temperature.

Community

The living part of an ecosystem.

Consumer

Any organism that eats the food producers

make, or that eats other consumers.

Decomposer

An organism that breaks down wastes and the

remains of other organisms.

Ecology

The study of how living and nonliving

things interact.

Ecosystem

The living and nonliving things in an environment, and all their interaction.

Endoskeleton

An internal supporting structure.

Exoskeleton

A hard covering that protects an

invertebrate’s body.

Extinct

An organism no longer alive on Earth.

Family

A smaller group of organisms within a class.

Food Chain

The set of steps in which organisms get the food they need to survive.

Genus

A group made up of two or more very similar

species.

Habitat

The home of an organism.

Herbivore

A consumer that eats only plants.

Invertebrate

An animal without a backbone.

Kingdom

The largest group into which an organism can be

classified.

Mammal

A warm-blooded vertebrate with hair or fur.

Omnivore

A consumer that eats both plants and

animals.

Order

A smaller group within a class.

Organism

A living thing that carries out five basic life functions

on its own.

Overpopulation

A depletion of resources that occurs when too many of at least one kind of living

thing inhabits an ecosystem.

Population

One type of organism living in an area.

Phylum

A large group within a kingdom.

Producer

An organism, such as a plant, that makes food.

Reptile

A cold-blooded vertebrate that lives on land and has

a backbone, an endoskeleton, and

waterproof skin with scales or plates.

Species

The smallest group into which an organism is

classified.

Trait

A characteristic of a living thing.

Vertebrate

An animal with a backbone.

Warm-blooded

An animal with a constant body temperature.

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