Final Exam Review - Ch. 2

A model that shows a single sequence of feeding relationships is called a

• food web

• food chain

• feeding chain

• trophic level

Which of the following provide most of the energy in ecosystems?

• keystone species

• carnivores

• producers

• generalists

A food chain contains oak trees (producer), mice (herbivore), black rat snakes (carnivore), and bald eagles (carnivore). How many trophic levels does this food chain have?

• four

• three

• two

• one

A group of gray wolves living in Minnesota is an example of

• a community

• a biome

• an ecosystem

• a population

An ecosystem consists of

• the soil, water and weather.

• a community of organisms.

• energy.

• all of the above.

A group of organisms of different species living together in a particular place is called a

A. community. C. biome.

B. population. D. habitat.

• biome

• population

• community

• habitat

The algae, insect larvae, protozoans, and other species in a small pond would be an example of a

• Community

• Biome

• Biosphere

• Population

A(n) ________collects energy from sunlight or inorganic substances to produce food.

• autotroph

• heterotroph

• decomposer

• detritivore

A fish grazing on ocean algae is an example of a

• autotroph

• heterotroph

• decomposer

• detritivore

What does the illustration above respresent?

• a food pyramid

• a food chain

• a food web

• an energy pyramid