Unit Test 1: Version 3

Front

What is the scientific method?

Back

The scientific method is a systematic process that scientists use to study the natural world, involving observation, hypothesis formulation, experimentation, and conclusion.

Front

What percentage of energy typically transfers from one trophic level to the next in an ecosystem?

Back

10%.

Front

What is a food web?

Back

A food web is an illustration that uses arrows to show the many possible directions in which matter and energy can pass through the organisms in an ecosystem.

Front

What is a primary consumer?

Back

A primary consumer is an organism that eats producers (plants) in an ecosystem.

Front

How do animals obtain nitrogen stored in plants?

Back

Animals obtain nitrogen by eating the plants.

Front

What is a producer in an ecosystem?

Back

A producer is an organism, typically a plant, that can make its own food through photosynthesis.

Front

What is a secondary consumer?

Back

A secondary consumer is an organism that eats primary consumers.

Front

What is a tertiary consumer?

Back

A tertiary consumer is an organism that eats secondary consumers.

Front

What is an energy pyramid?

Back

An energy pyramid is a graphical representation that shows the flow of energy at each trophic level in an ecosystem.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and making them available for producers.