Can someone please help me

The answer is "it controls the rate of breathing by sending hormones through the blood." (A)

For example, this quote states that "The response of the brainstem to increased levels of carbon dioxide in the blood is coordinated with the response of the cardiovascular system. When these chemoreceptors detect such a change, the body responds by regulating blood flow and breathing."

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)

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.