Ecology Vocab

A species that plays a critical role in the health, maintenance, growth, or definition of an ecosystem.

• keystone

• invasive

• engineer

• predator

the variety of life in the world or in a particular habitat or ecosystem.

• biodiversity
• genetic variation
• habituation
• endemic species 

A population references __________ species while community references _________ species in an area.

• one, all

• all, one

• some, all

• all, some

Which of the following describes an interaction between a biotic factor and an abiotic factor?

• A pair of birds build a nest in a tree.

• A black bear uses a cave for a winter home.

• A squirrel gathers nuts to store for winter.

• A vulture eats the remains of a wild pig.

The nonliving parts of an ecosystem.

• Abiotic factors

• Biotic factors

The living portions of the ecosystem.

• Biotic factors
• Abiotic factors

The organisms that make up a community and the nonliving parts of the environment that they interact with are a(n)

• Population

• Community

• Habitat

• Ecosystem

Two or more members of a particular species living and interacting in the same area

• Community
• Population
• Organisms
• Biosphere

Different populations living and interacting with each other in the same area

• Biome
• Ecosystem
• Community
• Niche

A place where an organism lives.

• Terrain
• Habitat
• Community
• Population