1. What is the definition of an ecosystem?
In your own words

Ecosystem means the biome of interacting living organisms and the environment situation. Like in the Rainforest's ecosystem :rainforest is an area of tall, mostly evergreen trees and a high amount of rainfall.

Explanation:

i believe it would be the lungs.

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)