Kari snagged a cigarette out of her mom’s purse. she had always wondered why her mom did something so smelly and teeth-yellowing. the first cigarette made kari feel: a. paralyzed b. like she would die c. a little energized, yet relaxed d. none of these

While your absolute maximal oxygen uptake remains unchanged, your relative maximal oxygen uptake can increase without engaging in an aerobic exercise program. how can you accomplish this, and would you benefit from doing so

How harmful is it to smoke a pack of cigarettes a week?

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides.b) replication of their genomes does not involve proofreading.c) rna viruses can incorporate a variety of nonstandard bases.d) rna viruses are more sensitive to mutagens.