What is the relationship between coronary artery disease and a heart attack?
coronary artery disease is a symptom of heart attacks.
heart attacks reduce blood flow to the heart and cause coronary artery disease.
coronary artery disease can reduce blood flow to the heart and cause heart attacks.
heart attacks occur when coronary artery disease is treated.

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Which identifies the main purpose of biological taxonomy?

What causes eclipses? check all that apply. earth's rotation on its axis moon's shadow covering the sun earth's shadow covering the moon earth's orbit and moon's orbit occasionally aligning the moon and sun's gravity pulling in the same direction