Andrew is a teenager in a dating relationship. he and his girlfriend spend time together on the weekends. they often use alcohol and drugs, and also have unprotected sex. which of these puts andrew at the greatest risk of contracting an sti? check all that apply. he is a male.
he has unprotected sex.
he is in a dating relationship.
he uses drugs and alcohol.
he spends weekends with his girlfriend.

The correct answer is - He has unprotected sex and he uses drugs and alcohol.

Explanation:

Sexually transmitted infections are transferred by sexual contact with the infected person but it can also be transferred sharing the same syringes by drug abusers because STI transfers through body fluid.

Therefore unprotected sex between Andrew and his girlfriends will put Andrew at greatest risk of contrasting as STI. Apart from the unprotected sex, Andrew can contract STI if he and his girlfriend are using the same syringes to take drugs intravenously.  

So the right options are -  He has unprotected sex and he uses drugs and alcohol.

explanation:

eventually, the disease can cause permanent damage or deterioration of the nerves. some people with ms experience a gradual onset and steady risk factors.

to prevent people from getting the ebola virus, countries around the world paid to doctors develop a new vaccine. now that the vaccine has been made, doctors will need to experiment on a large number of people to find out if it works safely.

what is the greatest limitation that scientists are dealing with as they try to figure out how to experiment with the ebola vaccine?

meditation is a practice of sitting still and quiet for minutes or even hours. it has been practiced for thousands of years and is even a part of religious practices for some people. carefully controlled, repeated measurements of brain activity have shown that meditation does increase certain chemicals in the brain and even grows the part of the brain that people connect with their current surroundings and activities.

are claims about the effects of meditation most likely scientific or pseudoscientific?

not pseudoscientific, because people have made claims about it but scientific observations have not been made