Transverse tubules select one: a. store sodium ions for the action potential at the cell surface. b. transmit muscle impulses into the cell interior. c. store calcium ions. d. connect actin and myosin.

b. transmit muscle impulses into the cell interior.

Explanation:

Transverse Tubules are also known as T Tubes that pass laterally through the muscle fiber. The T Tubes or Transverse Tubules carry the nerve impulses received by the sarcolema to the myofibrils, these are also conductive to substances such as glucose, oxygen and ions. In other words, these tubules are responsible for transmitting muscle impulses into the cell interior.  

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)