The answer should be d because you move down the body from the head/neck to the thorax then the limbs and so on
Answer:
b. has likely been extracted chemically rather than mechanically.
Explanation:
When the oil extraction is mechanical, olives are squeezed with a machine till the oil comes out, the olive oil is of higher quality because there were no chemicals that interfered in the process. On the other hand, chemical extraction of oil from olives uses different substances to obtain the final product making the oil to be of low quality because some components were affected during the process
The correct answer is D) An apparently longer survival time among persons identified during a screening program because they were identified at an earlier stage of their disease
Explanation:
In medicine, screening is a method to diagnose diseases even if the person has no symptoms; due to this, screening is related to earlier detection of diseases than traditional diagnosis based on symptoms. Early diagnosis does not imply longer survival time, but it can lead to doctors or individuals to perceive the survival time was longer, this phenomenon is known as lead-time bias.
For example, a person diagnosed with cancer at an early stage when he is 45 years old, dies at 50 years old, this means his survival time was 5 years. If the same person is diagnosed at 48 years based on symptoms and he dies at 50 it seems the survival time is less (2 years); however, this is biased as the diagnosis did not change the effect of the disease. According to this, lead-time bias can be described as "an apparently longer survival time among persons identified during a screening program because they were identified at an earlier stage of their disease".
