How I got this wrong? :(

Because algae gives 70% of the world's oxygen!

Co2 is what started and helped give life, plants had to start off from something or somewhere, and without Co2, they wouldnt be alive

Explanation:

hope this helps

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)

the answer would be   10%