How does nicotine affect the body? a( makes one feel sleepy b( slows breathing rate c( increases heart rate d( lowers blood pressure

Jared is sufffering from a problem on one knee. his doctor suspects nerve damage. what can jared's doctor test to confirm whether jared has a damaged nerve?

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

Which of the following represents a difference between viruses and viroids? a) viruses infect many types of cells, whereas viroids infect only prokaryotic cells. b) viruses have capsids composed of protein, whereas viroids have no capsids. c) viruses have genomes composed of rna, whereas viroids have genomes composed of dna. d) viruses cannot pass through plasmodesmata, whereas viroids can.