Chapter 7.2 Test

The ultimate source of all the energy that flows through the food web is

• petroleum products.

• the sun.

• wind.

• plants.

Establishing new vegetation in a newly formed, barren habitat is called

• secondary succession.

• resource partitioning.

• commensalism.

• primary succession.

Lichen is an organism in which fungus and algae live together. The fungus provides water and protection and the algae provides food through photosynthesis. This type of relationship is called

• commensalism.

• mutualism.

• parasitism.

• none of the above.

A food chain is made up of an oak tree, an insect, a mole, and a raccoon. The producer would be the

• oak tree.

• insect.

• mole.

• raccoon.

The type of organism that is most likely to be at the top of an ecosystem's energy pyramid is a

• producer.

• herbivore.

• detritivore.

• carnivore.

An organism that eats other living organisms but does not live on or in its prey is a

• predator.

• parasite.

• prey.

• carnivore.

An organism that depends on another living organism and lives in, on, or near that organism is a

• predator.

• parasite.

• prey.

• carnivore.

Animals that eat herbivores

• consumers

• detritivores

• scavengers

• primary carnivores

The food and energy links in a community

• food chain

• food web

• niche

• community food

An organism's unique role in its environment

• dwelling place

• personal space

• niche

• community