An ecologist studies the relationships among organisms. the work of an ecologist will most likely solve problems related to which societal problem? a: treatment of disease b: protection of food supplies c: protection of the environment d: overuse of prescription medicine

a chair, a bed, and a toothbrush

explanation:

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)