If SA node cells dont actually help pump blood, why does the heart need them?

                                                                                                       bro                                                                

Explanation:

absolute strength refers to the maximum force exerted by a body irrespective of body size. relative strength on the other hand is the force exerted by a body in relation to muscle size or body weight.

so the answer is: c. absolute strength measures strength regardless of your body size, while relative strength measures strength adjusted for your weight.