Answer:
A problem known as a sampling error.
Explanation:
Sampling error refers to the error that occurs when the researcher does not select a correct sample, that is, he does not select a sample that is efficient in representing a group or a population. In this case, the conclusions that the experiment presents are inaccurate and cannot be considered credible. An example of this can be seen in the above question, where, seeking to represent journalists from all over the country, the researcher selected only journalists from Chicago to compose a sample. Chicago journalists are not enough to represent an entire country, so we can say that this experiment contains a sampling error.
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Because this factor normally varies, the most important variable that influences the diffusion of respiratory gases is the concentration gradient. The air in the lungs has a higher concentration of oxygen than that of oxygen-depleted blood and a lower concentration of carbon dioxide. This concentration gradient allows for gas exchange during respiration.
Gas exchange during respiration occurs primarily through diffusion. Diffusion is a process in which transport is driven by a concentration gradient. Gas molecules move from a region of higher concentration to a region of low concentration. Blood that is low in oxygen concentration and high in carbon dioxide concentration undergoes gas exchange with air in the lungs.
Ventilation maintains concentration gradients of oxygen and carbon dioxide between the air in the alveoli and blood flowing in adjacent capillaries.
Learn more about concentration gradient here:
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Answer:
I believe he it is the serial position effect. Because he remembers the beginning but not the middle.
Hope it helps :)
Explanation: