Physicians determine preventative care screenings depending upon a persons age.
Answer:
D. Organs and muscles require more blood under stress.
Explanation:
Because muscular contractions can have a protracted metabolic expenditure because it has to be adjusted to the demands of the contracting muscles.
I think your answer for this question is D . I may be wrong ... but I think it's D
I believe the answer is: compression
Compression refers to a type of force that pressed a person or an object inward, causing it to become more compacted. If this type of force happen to our spines on a constant basis, over time our back bone would start to succumb to the force and bent over forward to accommodate the weight.