Carlos wants to participate in a physical activity that wil best improve his heart function. what tupe of activity should he use

Which example is a indication of stress a. becoming more alert b. narrowing air passages c. slowing down if the heartbeat d. decreasing blood sugar with adrenaline

Group of genes that encode molecules found in all body cells, creating a biochemical “fingerprint” that serves as the “id” for cells so that they are marked as “self” a) deoxyribonucleic acid (dna) b) entry inhibitors c) major histocompatibility complex (mhc) d) non-nucleoside reverse transcription inhibitors (nnrtis)

The menisci in the knee joint can be torn for a variety of reasons. considering the structure of the menisci would you expect these tears to heal on their own?