Which of the following is a major difference between viruses and living things?
a. living things contain genetic information in the form of nucleic acids, whereas viruses do not contain any genetic material.
b. viruses must eat in order to obtain energy, whereas all types of living things can make their own food.
c. most living things can reproduce independently, whereas viruses must infect living cells in order to reproduce.
d. viruses can cause diseases in humans, whereas no type of living organism can cause an infection or disease.

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)

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.