John stretched while his muscles were cold. which negative effect could occur?
a. blood might not flow to his limbs.
b. his strength could decrease quickly.
c. he could injure or pull a muscle.
d. oxygen might not reach his muscles.

An over the counter drug can contain alcohol as high as? a.10% b.30% c.40%

To your family you want to buy a quality hand washing product. what are 4 strategies you woulld use

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)