Identify the reactants of photosynthesis. a. H2O and O2
b. O2 and CO2
c. H2O and CO2
d. H2O, O2, and CO2

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)

not always but somethings can be reproduced in a laboratory.