Which of the following was an early realization that gave rise to darwin's theory of natural selection?

a.
the earth is younger than previously thought.

b.
the earth and its organisms have changed through time.

c.
organisms do not appear to be closely related.

d.
most organisms share the same habitat.

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)