1st -Sem 1 Final Exam Review Env Sci

Front

Carnivore

Back

an animal that feeds on animals

Front

What percentage of energy is transferred to the next level in a food chain?

Back

10%

Front

What are the three organisms that feed on Mayflies?

Back

Frog, salamander and trout

Front

What are autotrophs best described as?

Back

Plants; producers

Front

What does a food chain always start with?

Back

producer

Front

What is a producer?

Back

An organism that can make its own food, typically through photosynthesis.

Front

What is a consumer?

Back

An organism that obtains energy by feeding on other organisms.

Front

What is a decomposer?

Back

An organism that breaks down dead or decaying organisms, returning nutrients to the ecosystem.

Front

Define ecosystem.

Back

A community of living organisms and their interactions with their environment.

Front

What is a food web?

Back

A complex network of feeding relationships among various organisms in an ecosystem.