Intro to Ecology

An individual living thing.

• Population

• Organism

• Community

• Ecosystem

A group of the same species that lives in one area.

• Population

• Community

• Ecosystem

• Biome

A group of different species that live together in one area.

• Community

• Population

• Ecosystem

• Biome

All of the organisms and non-living things that share the same area.

• Biome

• Community

• Ecosystem

• Population

A major regional or global community of organisms.

• Population

• Biome

• Community

• Ecosystem

Plants, animals, fungi, and bacteria are ____.

• Biotic Factors

• Abiotic Factors

Rocks, wind, climate, and water are ___.

• Biotic Factors

• Abiotic Factors

The variety of organisms in an ecosystem.

• Biodiversity

• Population

• Ecology

• Variation

Species that have an especially large effect on their environment are called ____.

• Dominant Species

• Keystone Species

• Principle Species

• Critical Species

All organisms in an ecosystem require energy.

• True

• False