Ecology

The environment in which an individual organism lives or its home.

• mutation

• producer

• habitat

A community of living things interacting with the nonliving parts of their environment.

• ecosystem

• species

• habitat

The study of the environment.

• ecologists

• population

• ecology

Regulates or helps determine how many organisms live in an ecosystem.

• limiting factors

• unlimited factors

• positive factors

All of the following are limiting factors for an ecosystem, except

• natural disasters

• a forest

• draught

They use energy from the sun to make their own food through photosynthesis (at the bottom of the food pyramid)

• producers

• consumers

• decomposers

They cannot make their own food, so they eat other organisms for energy.

• producers

• consumers

• decomposers

They obtain nutrients from breaking down dead animals and plants, like a mushroom or worms.

• producers

• consumers

• decomposers

Feed on plants only

• scavengers

• omnivores

• herbivores

Feed on plants and animals

• carnivores

• ominvores

• herbivores