Vocabulary: Flash cards
Key Questions:

1. What is an ecosystem and what are two ways biotic factors depend on abiotic factors?

2. What does a food chain show and what are three roles organisms have to obtain energy?

3. What prevents a population from growing too large?

4. What are three kinds of symbiosis?

5. What is IPM and what are the four methods used to control pests?

Related Links:

Planet Earth