the answer is: A cognitive psychologist enrolls undergraduate students for a computer-based study about the effect of mood on problem-solving behaviors.
Here the requirement for research with human subjects according to the Fed :
"Obtains information or biospecimens through intervention or interaction with the individual, and uses, studies, or analyzes the information or biospecimens; or Obtains, uses, studies, analyzes, or generates identifiable private information or identifiable biospecimens."
The experiment on this ption fulfill the criteria because:
- The experiment should use studies or analytics to obtain some sort of private information from the subjects. (such as their mood)
- The experiment should make some sort of intervention that can be used to measure its hypothesis. (in the case above, the researchers could put the subject under a certain level of stress before telling them to solve a set of problems)
- The researchers need to interact with the subject in a certain way. (since the researchers meet the undergraduate directly, it's considered as an interraction)
According to functionalism, men fill instrumental roles, women fill expressive roles, and this arrangement benefits society. Functionalism is when the specific expected role of certain group or people are filled in perfectly according to what is expected. This in turn benefitted the whole community or society.
I believe the answer is: <span> have external ears
The seals on the other hand, only have small gap in the side of their heat but </span>lack an external ear<span> flap.
The function of the external ears are very similar to humans' , But sea lion's ears have different structures that help them to sustain pressure to protect them when they're diving.</span>
A because Rome was in a good place so they had a lot of resources
