Where on the thoracic surface do you auscultate to the tricuspid, mitral (bicuspid), pulmonary, and aortic valves?

Intercostal space

Explanation:

The intercostal space of the thoracic surface is the area where there is auscultation to the tricuspid, mitral (bicuspid), pulmonary, and aortic valves.

The tricuspid is found in the fourth intercostal space, mitral (bicuspid) is found in the fifth intercostal space, pulmonary and aortic is found in the second intercostal space.

c.           is the correct answer

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.