What are the 7 terrestrial biomes?

What is an ecosystem?

What is a habitat?

What is an ecological niche?

How do we classify an ecosystem?

What are the 4 ecosystem relationships that occur?

What is the earth's initial form of energy?

How do producers transform the initial energy?

What is the 10% rule?

Where does the other 90% of energy go?

What are the trophic levels that the energy moves to/from?

What is a food chain?

What is a food web?

What is primary productivity?

What is an ecological pyramid?

What is BIOMASS?

What the difference between an ecological, fundamental and realised niche?

What is the competitive exclusion principle?

Carbon Cycle

Nitrogen cycle