Biology Unit 4: Ecology

Students construct a graphic organizer to illustrate the different levels of biological organization.

Which terms does the X represent?

• cell

• organism

• ecosystem

• biosphere

Which statement provides the best explanation for the difference in biomass of organisms found at each trophic level?

• Organisms at higher trophic level have less energy available to them than organism at lower trophic levels.

• Organisms at higher trophic levels require smaller habitats that organisms at lower trophic levels.

• Organisms at lower trophic levels provide less energy than organisms at higher trophic levels.

• Organisms at lower trophic levels outcompete organisms at higher trophic levels.

What would be a good example of a primary consumer?

• carnivore

• detrivore

• decomposer

• herbivore

The monkey would be a

• decomposer

• producer

• primary consumer

• secondary consumer

Members of a species in a defined area

• Ecosystem
• community
• biodiversity
• population

Study of interactions between organisms and their environment 

• niche
• community 
• ecology
• ecosystem

Non-living factor that affects an ecosystem

• biotic factor
• abiotic factor
• food chain 
• biome

A collection of organisms that belong to different populations but all live in the same area and interact with one another.

• Population
• Ecosystem
• Community
• Ecosphere

Individuals that can breed with one another make up a

• species
• population
• community
• ecosystem

All of the living and nonliving things in an area that interact with each other are called a/an ______.

• community
• habitat
• population
• ecosystem