To protect U.S. species at risk of extinction

To increase hunting of endangered animals

To promote animal trade

To reduce biodiversity

Breeding animals in controlled environments

Breeding animals in the wild

Breeding plants in gardens

Breeding animals for food

Variety of species in an ecosystem

Number of animals in a zoo

Amount of water in a habitat

Size of a forest

Disappearance of a species from a particular area

Increase in population of a species

Introduction of new species to an area

Migration of species to new habitats

Program to save threatened species through captive breeding and research

Plan to hunt endangered species

Program to increase plant diversity

Plan to reduce animal populations

Illegal capture or killing of an organism

Legal hunting of animals

Farming of endangered species

Conservation of wildlife

Variety of habitats, living communities, and ecological processes

Number of species in a zoo

Amount of water in a habitat

Size of a forest

Species found only in one area in the world

Species found everywhere

Species that migrate often

Species with a large population

Patch of suited habitat surrounded by unsuitable habitat

Creation of new habitats

Increase in habitat size

Mixing of different habitats

Species likely to become endangered soon through all or part of its range

An area that both supports a high number of endemic species

Differences in DNA

Variety of species in an area

An area that both supports a high number of endemic species and is rapidly losing biodiversity

Species likely to become threatened.

Differences of DNA

Variety of species in an area

US Law that protects biodiversity

Individuals that have the same DNA

Variety of species in an area

Differences in DNA among individuals