1. True or false: The end organs (receptors) of smell are known as olfactory neurons.   Hint Hint       2. Outermost coat of the eyeball consists of sclera and _______.   Hint       3. Viscous fluid filled in the space behind the lens:   First letter clue   4. _______ apparatus is a part of the internal ear and is responsible for maintenance of equilibrium and posture.   Hint       5. True or false: Few taste receptors are also found in the cheek.   First letter clue   6. Identify pupil in this diagram.   Hint       7. True or false: Choroid is the layer of the eye situated in between retina and sclera.   First letter clue