Which is an organic molecule?
a.
hydrochloric acid (hcl)
b.
methane (ch4)
c.
water (h2o)
d.
carbon dioxide (co2)
e.
oxygen (o2)

explanation:

amber has allowed scientists to study dna that has been preserved over millions of years.

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)