Important for nutrients and for plants to anchor their roots. 

Building blocks in all living organisms. They are needed for feeding, growth and staying alive. 

All terrestrial plants have thick leaves and is covered with thorns.

A biome is a very large area of the planet which is classified by the animals and plants that live in it.

Organisms that eat plants. 

Last link in the consumer chain. 

Eat secondary consumers and can either be carnivores or omnivores.

Eat primary consumers and can either be carnivores or omnivores. 

We use ecological pyramids to draw animal habits.

Each of the levels of an ecological pyramid is known as a trophic level.

In a food web, we can overlap only two food chains.

A food chain tells us who eats who and how the energy from the sun flows  through an ecosystem.

The rate at which energy is transferred from one organism to another is called

This rate of energy capture is called

Tectonic plate movement plays a role in wind energy.

Renewable resources cannot be replaced easily.

Non-renewable resources mainly come from fossil fuels.

Food chains are simple and often incomplete.

Genetic diversity is very high.

Recycling does not help to preserve the environment.

All disturbances to an ecosystem are negative.

Coral reefs are massive underwater neighborhoods.