Unit 1 Pre-Test

Front

Toxin concentrations _____________ as you go up the food chain.

Back

increase

Front

Which consumer is the most affected by toxins like mercury?

Back

Apex Predator

Front

What is the role of a producer?

Back

Use sunlight to make food

Front

The fox in this food web would be considered a:

Back

Tertiary Consumer

Front

What is a trophic cascade?

Back

A series of secondary extinctions triggered by the primary extinction of a key species in an ecosystem.

Front

What is a food chain?

Back

A linear sequence of organisms where nutrients and energy pass from one to another.

Front

Define primary consumer.

Back

An organism that eats producers; typically herbivores.

Front

What is a secondary consumer?

Back

An organism that eats primary consumers; typically carnivores.

Front

What is an apex predator?

Back

The top predator in an ecosystem, with no natural enemies.

Front

What is biomagnification?

Back

The process by which toxin concentrations increase in organisms at higher trophic levels.