<span>There is an organ in the brain sensitive to light changes, which then affects our sleepiness.
This sensitivity to light changes will determine our response to melatonin that influences our level of 'tiredness'.
The more melatonin that we have in our body, the more likely we feel sleepy and fall asleep.</span>
Answer:
they wanted political liberty
Explanation:. They wanted religious freedom and economic opportunity. The United States is a country where individual rights and self-government are important. Colonists first came to America for more freedom
Answer:
c. predictive validity
Explanation:
In research, the term predictive validity refers to the fact that a score in a test or the performance on a task is related to the performance in another test or task that is evaluated in the future after the first test. So, the first test/criterion will likely predict how the person will do in the second one.
In this example students take a college entrance exam and it's been observed that the ones who do well in them, do well in their first year of college. We can see that <u>the score in the entrance exam will likely predict how the students will do during their first year of college</u>. Therefore, these exams have predictive validity.
C because Russia would have taken over the eat side and they are Communist
