Answer:
prisoners
Explanation:
Prisoners have been popular victims(research subjects) of illegal research in the past and so laws have been put in place to prevent this.
Prisoners are classified as "vulnerable" under federal regulations that regulate research with prisoners. This is because their informed consent and voluntary decision to participate in any research brought before them is somewhat compromised. The health and human services(HHS) in addition to other regulations have added additional requirements for research on prisoners such as the requirement of a prisoner or prisoner representative in the IRB.
Answer: Experimental
Explanation:
Experimental study is the study in which researcher has some control over the variables where he can experiment and test over the groups. Observational study provides no control to researcher .He can only observe the process.
According to the question, study conducted by farmer is experimental as farmer has the control over quantity variable of land , grouping choice of crop etc.He is dividing the land equally in four parts,sowing same crops into 4 groups in each piece depicts that he is testing or experimenting everything equally.
ADHD or the Attention deficit hyperactivity disorder is
treated by therapy, medication and a special diet or some combination of the
three or all of them combined. Usually the most common way to treat ADHD is with
the behavioral therapy coupled with social training, special school curriculum
and physical exercise. So, this is the treatment that would most likely be given.
The use of medication and a special diet can also be prescribed.
Answer:
1. gradually becomes stronger
Explanation:
The gravitational force between two particles increases as the particles come closer together. Therefore, as the cloud becoming small and particles moving closer together, the force of gravity becomes stronger. This will accelerate the collapse as long as no other force resists it. This is the case where the early stages of the collapse before the internal gas pressure builds up. when the gas pressure builds up, the outward push of the pressure can counteract the inward pull of gravity, which is why the cloud after an unspecified period of time it stops contracting.
