All of these but the nosebleeds seem correct, but something much stronger like cocaine can cause nosebleeds.
But if you want just ONE answer 'impaired memory and learning' seems like the best one to pick because that is one of the most noticeable signs of marijuana use.
This website talks about the symptoms of use, I trust its accuracy:
https://www.webmd.com/mental-health/addiction/marijuana-use-and-its-effects#1
Answer:
Arteries carry blood away from the heart; veins carry blood back to the heart.
Explanation:
In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
Diastole: in this stage, the ventricles is relaxed and would be filled with blood.
Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
The best description for arteries and veins is that arteries carry oxygenated blood away from the heart to other parts of the body such as brain, lungs, tissues, etc; veins carry blood that is low in oxygen content back to the heart.
I think the biggest one would be 621
Answer:
3-6 feet
Explanation:
The cough produced by the humans can contain about 3,000 droplets of human saliva at the time of the expulsion of the cough from the mouth at a speed of 50 miles per hour.
The sneezing is even worse and produces about 40,000 droplets of saliva with a speed of 200 miles per hour is expelled out of the mouth and nose.
Therefore it is suggested that the person should stand 3 to 6 feet away from the person who is coughing and sneezing as the droplets of saliva settles at about 3 to 6 feet.
Thus, 3 to 6 feet is the correct answer.
