Part one: wave facts
1. what type of waves can only travel through a medium?

Mechanical waves

Explanation:

Mechanical waves are produced from the oscillation of matter. Examples of mechanical waves are sound waves, P & S waves of earthquakes, and etcetera. This means they require a medium to transfer energy. They cannot transfer energy in a vacuum, unlike electromagnetic waves.

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)