U2REV Ecology Vocabulary

Which term refers to all the living organisms in a particular area?

• Abiotic factor

• Biotic factor

• Habitat

• Niche

What is the name for the non-living components of an ecosystem, such as sunlight and water?

• Biotic factor

• Abiotic factor

• Population

• Community

Tags

NGSS.MS-LS2-3

Which term describes the maximum number of individuals an environment can support?

• Population density

• Carrying capacity

• Limiting factor

• Tolerance

What is the process called when bacteria convert nitrogen gas into a form plants can use?

• Denitrification

• Nitrogen fixation

• Photosynthesis

• Decomposition

Which of the following is an example of a heterotroph?

• Grass

• Mushroom

• Oak tree

• Algae

What is the term for a group of individuals of the same species living in the same area?

• Population

• Community

• Ecosystem

• Biome

Tags

NGSS.MS-LS2-4

Which type of organism makes its own food using sunlight or chemicals?

• Heterotroph

• Detritivore

• Autotroph

• Carnivore

Tags

NGSS.MS-LS1-6

What is the role or job of an organism in its environment called?

• Habitat

• Niche

• Biome

• Trophic level

Which term describes a relationship where both species benefit?

• Parasitism

• Mutualism

• Commensalism

• Predation

What is the sequence of organisms through which energy is transferred in an ecosystem?

• Food web

• Food chain

• Trophic level

• Biomass

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3