Front

What is a producer?

Back

An organism that uses energy from the Sun during photosynthesis to create its own food.

Front

What is a tertiary consumer?

Back

A trophic level that eats secondary consumers.

Front

What is biodiversity?

Back

The variety of life on Earth, including different species, ecosystems, and genetic variations.

Front

What is the birth rate in Stage 1 of demographic transition?

Back

High.

Front

What is the greenhouse effect?

Back

The warming of a planet due to trapped radiation.

Front

What is a predator?

Back

An organism that hunts and eats other organisms.

Front

What is a keystone species?

Back

A species that has a disproportionately large effect on its environment relative to its abundance.

Front

What is an ecosystem?

Back

A community of living organisms and their physical environment interacting as a system.

Front

What is a primary consumer?

Back

An organism that eats producers; typically herbivores.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic material, returning nutrients to the soil.