Saliva to break down food chemically by using enzymes. which statement best describes this process? a) saliva mixes the food particles. b) saliva produces gas from the food. c) saliva moves food through the digestive track. d) saliva changes the chemical composition of food.

b because they naturally adapt to their environment plz mark brainliest

explanation:

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)