Which type of stimulus is an allergen, such as pollen?
a.
inborn stimulus
b.
external stimulus
c.
response to a stimulus
d.
internal stimulus

The body is protected against harmful flu viruses by

What amino acid is coded for by this sequence after the mutation

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes