Which statement is true about dopamine?
a. dopamine discourages healthy behavior.
b. drug-addicted brains become used to tolerating higher levels of dopamine.
c. dopamine stimulates displeasure and lack of memory.
d. damage from addiction can be reversed.

What type of risk factor for underage drinking includes gang presence and income inequality

Lyme disease is caused by a bacterium transmitted to people by deer ticks. deer ticks are almost never born infected with the bacterium, but they can pick it up from feeding on an infected host in any of the tick's three successive stage of development: larva, nymph, adult. once infected, a tick remains infected through any subsequent developmental stages, but since a tick feeds on only one host in each stage, it follows that . people can be infected only by being bitten by a tick that is either in larval stage or in the nymph stage b. people cannot be infected by a tick that picked up the lyme disease bacterium in the adult stage c. it is not possible for a person to be infected by a tick that is in the nymph stage or by a tick that was infected with the bacterium while in the nymph stage d. people infected with the lyme disease bacterium cannot transmit bacterium to adult deer ticks e. only deer ticks that are adults can transmit the lyme disease bacterium to people

Which of the following is not a component of skill-related fitness? a. balance b. speed c. power d. heart rate