Ecology Vocabulary

What is the term for the role an organism plays in its ecosystem, including its habitat and interactions with other organisms?

• Niche

• Habitat

• Community

• Population

Which term describes a symbiotic relationship where both species benefit?

• Parasitism

• Mutualism

• Commensalism

• Competition

What is the term for a group of ecosystems that share similar climates and organisms?

• Biome

• Community

• Population

• Habitat

Which of the following is a biotic factor in an ecosystem?

• Sunlight

• Temperature

• Plants

• Water

Tags

NGSS.MS-LS1-4

NGSS.MS-LS2-4

What is the term for the maximum population size that an environment can sustain indefinitely?

• Carrying capacity

• Population density

• Biotic potential

• Limiting factor

Which process involves the conversion of nitrogen gas into ammonia by bacteria?

• Nitrogen fixation

• Nitrification

• Denitrification

• Ammonification

What is the term for the gradual process of change and replacement of the types of species in a community?

• Succession

• Evolution

• Adaptation

• Migration

Which term describes the non-living components of an ecosystem?

• Biotic

• Abiotic

• Symbiotic

• Trophic

Tags

NGSS.MS-LS2-3

What is the term for the variety of life in the world or in a particular habitat or ecosystem?

• Biodiversity

• Ecosystem

• Community

• Population

Tags

NGSS.MS-LS2-5

Which of the following is an example of a density-dependent factor affecting population size?

• Natural disaster

• Disease

• Climate

• Sunlight