The stethoscope is a device commonly used by doctors to monitor heart function. when listening to a heart beating using a stethoscope, the doctor hears the characteristic "lub-dub" sounds. the lub sound represents the ( of the atrioventricular valves and the dub sound represents the closure of the valves between ( 1. closing or opening 2. the arteries and atria, the ventricles and arteries, or the atria and ventricles doctors can also use stethoscopes to monitor respiratory function. a wheezing or whistling sound most likely indicates ( 3. blocked sinuses, an inactive diaphragm, or a constricted trachea

Interpret the model. a three-part model with black right-arrows between the parts. left part: a large green apple-shaped component with a w-shaped indentation centered on top. a small blue apple-slice shape sits above the left indentation and an arrow points from the shape to the indentation. a small purple apple-slice shape and arrow sit above the right indentation and an arrow points from the shape to the indentation. middle part: a large green apple-shaped component with a square indentation centered on top. sitting in the left side of the indentation is a blue apple-slice shape with a flat bottom, fused to a purple apple-slice shape with a flat bottom on the right side of the indentation. right part: a large green apple-shaped component with a w-shaped indentation centered on top. an up-arrow is centered above the indentation pointing to a fused blue and purple apple-slice-shaped flat-bottom component sitting above the indentation. assigne "true" or "false" to the end of each statement. the model shows a shape change occurring in the enzyme after the substrate is bound in the active site. t/fthere are two products in this model. t? f there are three substrates in this model. t/f the model shows two different enzymes. t/f

What sre the effects of hemolytic disease of a newborn

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false