Answer:
"heart attacks are most often caused by a sudden drop in blood pressure."
Answer: b. "I must take this medication with food or I can have heart burn"
Explanation:
Gemfibrozil, is a medication that is taken by mouth and it is used in the treatment of abnormal blood lipid levels. One of its brand names is Lopid.
But Statins are usually preferred to Gemfibrozil.
It is recommended that while you use it you should also change your diet and exercise.
It is not clear yet, if it changes the risk of heart disease. So it is advised that you take it with food to avoid heart burns.
Answer:
Environment
Explanation:
In a research study, internal validity refers to how well an experiment was carried out and to what extent the piece of evidence supports a claim.
The lesser the chance of confounding in a study the higher the internal validity.
Study of memory is possible through learning the electrical activity created by neurons.
Therefore, thunderstorm will affect the readings hence it is an Environmental threat to the internal validity.