Ecology Quiz

If an insecticide reduced the population of grasshoppers, what would happen to the population of shrew?

• increase
• decrease
• remain the same

Food Web

• An animal that eats only other animals
• An animal that eats only plants
• A useful diagram for displaying the feeding relationships among all the organisms in one ecosystem
• An organism that eats dead or decaying matter and changes it into nutrients or minerals

Consumer that eats plants

• heterotroph
• herbivore
• producer
• community

An animal that hunts other animals for food is a ___________

• herbivore
• predator
• prey
• omnivore

What does every food chain start with (hint: original source of energy)?

• producers
• sun
• consumer
• decomposers

Relationship in which two species live closely together over a longer period of time

• resource
• mutualism
• succession
• symbiosis

The rabbit in this food web would be considered a:

• Decomposer
• Producer
• Secondary Consumer
• Primary Consumer

Energy increases as you move up the food pyramid (from bottom to top).

• True 
• False

Trophic Level

• The level in a food web in which energy is transferred through
• An organism that eats only plants
• A pyramid
• An organism that makes its own food through photosynthesis

What you change in the experiment is known as the _______ variable.

• Controlled
• Dependent
• Independent
• Constant