Stress causes the blood vessels to constrict, also causes the chemical cholesterol into the bloodstream too much of that and you might have a heart attack due to the clogging of vessels
a alive. I hope its right and helps
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:
Answer: 5(last one :regulation of circulatory system)
The arctic foxes with white fur could’ve blended in more to the background and wouldn’t have been as appealing to the eye to predators. Therefore, the population of white furred foxes would carry on and the white fur gene will carry on throughout generations as long as the background doesn’t change. If the climate, conditions, or background change and they don’t camouflage anymore, they they will be more likely to get killed off and the genes will not carry on.
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