I am almost positive that C is your answer here
C.
Exercising and building muscle strength helps prevent arthritis.
A. To speed up the surgert that transplants a kidney
Answer:
CSF ( Cerebrospinal fluid) is the colorless, clear fluid present in the spinal cord and brain. The ependymal cells present in the choroid plexus is responsible for the production of CSF.
Around 500 ml of the CSF is produced every day in the central nervous system. The main function of the CSF is the covering of the brain and cushions the central nervous system. This fluid allows the water medium for the diffusion of the chemicals and nutrients
Answer
I think the answers are correct I am not for sure.
1. B.
2. A.
3. D.
4. A.
5. C.
6. D.
7. B.
8. A.
9. B.
10. D.
Explanation: