Even a tiny stimulus that does not reach threshold will generate an action potential?

List TWO roles of lipids in living organisms.

3. Pulmonary artery pressure _______mmHg at rest signifies pulmonary hypertension

A trait inherited on chromosome #4 is present in the phenotype of people with two copies of the recessive allele, but not in anyone else. What type of inheritance does this trait have?

A thyroidectomized rat will still be able to produce triiodothyronine, but unable to convert it into thyroxine.

Where do most steps of aerobic respiration occur?

A graph plotted with the radius on the X-axis and blood flow rate on the Y-axis will be linear.

The benefit of a relative refractory period in a sensory neuron axon is that it is easier to modify the intensity of the sensation by altering the frequency of the stimulus.

A patient with O type blood can receive which of the following blood types during a transfusion?

Observe the pedigree for an autosomal dominant trait below. What is the genotype for person A and what is the genotype for person B? Label your answers clearly.