Question

Which one feature is correctly described?

• A. Salivary glands - secretes saliva - replication
• B. Pupil of the eyes - dilate - constricts- regulates entry of light
• C. Heart rate - decreases - tachycardia
• D. Intestinal peristalsis - stimulates - inhibits - heart rate

Answer 1

The correct option is B Pupil of the eyes - dilate - constricts- regulates entry of light

The pupil is a hole or opening in the middle of the iris. Iris is the coloured part of the eye that controls the amount of light entering the eye by adjusting the size of the pupil (contraction and dilation). Salivary glands are associated with digestion while intestinal peristalsis moves the food through the intestine. Tachycardia refers to the presence of faster heart beat. So, the correct answer is option B.