Answer:
Teens may use a substance for many reasons. They may do it because:
They want to fit in with friends or certain groups.
They like the way it makes them feel.
They believe it makes them more grown up.
Teens tend to try new things and take risks, so they may take drugs or drink alcohol because it seems exciting.
Teens with family members who have problems with alcohol or other drugs are more likely to have serious substance use problems. Also, teens who feel that they are not connected to or valued by their parents are at greater risk. Teens with poor self-esteem or emotional or mental health problems, such as depression, also are at increased risk.
Explanation:
The correct answer would be A.TRUE
Ischemic strokes happen when a blood clot (thrombus) or a fatty deposit blocks an artery supplying blood to the brain around 80% of all strokes are ischemic in origin the remaining 20% of strokes are hemorrhagic where an artery bursts.
The cells in the heart need a constant supply of nutrients / oxygen and to get rid of their waste products ans that why it needs its own special circulatory system.
Answer: Refractory period of the cardiac action potential
Explanation:
Unlike the skeletal muscle which can be reactivated before it reaches a contraction, cardiac muscle must wait before it is almost completely relaxed to be activated again (because of its long refractory period), so one cannot make an increase in strength of contraction with a high frequency of stimulations.
yes because exertion of the heart increases and makes you lose weight
