Question

Nicotine, a substance found in cigarettes, causes blood vessels to constrict. What effect might prolonged smoking have on the body?

A. Decreased heart rate
B.Decreased heart strength
C.High blood pressure
D. High blood volume

Answer 1

the answer is in your question
constricted means narrowed
so if blood vessels narrowed
whats gonna happen?

Answer 2

decrease?

Answer 3

is A correct??

Answer 4

why heart rate would decrease? what makes u think so?

Answer 5

because from what I know smoking decreases your heart rate

Answer 6

its either A or B idk ;(

Answer 7

let me give u example
lets say
there is a guy in your school that is chubby
like very chubby
and he needs to get to his classroom because he is running late
but to get to class
he has to pass through loooong corridor
but that corridor is so narrow that he bearily fits in there
so he struggles forcing himself to move forward to reach his classroom

Answer 8

same is with that blood vessel
what can u decide from this example?

Answer 9

Ohhhh! so Its B because he would need strength to go in through the door??

Answer 10

Omg Thanks! can I ask you more questions I need help with ?:(

Answer 11

would he use same amount of force to go through corridor that is wider as that is when its narrower?
does he feel same amount of pressure from walls of corridor when its wide as compared to when its narrow?

Answer 12

its not about strength also
think a bit more
u are close

Answer 13

;0 then Idk :(

Answer 14

C?? cause you need high pressure / force to go in the door

Answer 15

alright look
imagine its u
when u walk along a very narrow corridor
do u feel high pressure from walls or low pressure?

Answer 16

bingo!
:)

Answer 17

Omg :) Thanks so much !

Answer 18

no problem :) sorry this os app doesnt notify me when u reply =_= + it doesnt show replys as soon as u do reply #_# so it takes time ugh

Answer 19

lol its all good ! can I ask you some more ? :( im so new at this AP class and its hard for me-.-

Answer 20

A cardiologist suspects that a patient has a problem with either the valve between the left ventricle and the body or the valve between the right atrium and the right ventricle. What should the cardiologist do to test the valves in this order?
A.Analyze the first heart sound only
B.Analyze the second heart sound only
C. Analyze the first heart sound and then the second heart sound
D. Analyze the second heart sound and then the first heart sound

Answer 21

this one is about systolic & diastolic pressure
check out at which peek you hear first heart beat and then the second

then think of whats gonna happen if any of cardiologist's assumptions is true

Answer 22

I honestly have no idea..!