Answer:
"The walls of the coronary arteries lose elasticity, which can lead to a heart attack."
Explanation:
Atherosclerosis causes a profound alteration in basically all arteries: in the ones that go to the heart and brain, the carotids, in the aorta, this large artery that distributes blood to the whole body, and in the arteries of the lower limbs. It is, therefore, a systemic disease that produces huge changes in its evolution related to decreased blood flow in certain organs. To talk about this disease briefly and clearly, it can be said that with atherosclerosis the walls of the coronary arteries lose elasticity, which can lead to a heart attack.
What happens in atherosclerosis is that under various stimuli, including smoke, the artery changes and reacts. It multiplies its cells, receives the deposit of circulating substances, for example, the fatty ones and undergoes a calcification process that promotes its hardening and loss of elasticity, offering a high risk of infarction.
The question is incomplete as it does not have the options which are-
A. naturalistic observation
B. the hindsight bias
C. random sampling
D. the double-blind procedure
E. replication
Answer:
D. the double-blind procedure
Explanation:
The double-blind experiment are the experiments in which both the examiner or researcher and the participant or subject is unaware of that which subject will receive the experimental treatment of the experiment.
The double-blind experiment is performed to ensure that the experimenter is not biased when the subjects have placebo effects.
The test is used to determine the action of the drug on the participants in which the placebo are also used which give the same appearance of the drug but no drug is present in the substance.
Thus, Option-D is the correct answer.