21. Retina is, the ______________most layer, of the eye, ball?
(a)Outer
(b) Inner,
(c) Both A & B,
(d) None,
22. “Receptor cells” are, present in: ___________________?
(a) Sense organs
(b) Outer organs
(c) Inner organs
(d) both A&B
23. Vibration, of the drum, is due to: _______________?
(a) Sense waves
(b) Inner waves
(c) Sound waves
(d) Outer waves
24. We can “sense different stimuli” due to: ________________?
(a) nutrition
(b) blood
(c) Sense organs
(d) Environment
25. In eye, “sensory cells” are, located at:_________________?
(a) Choroid
(b) Nuclues
(d) iris
(d) retina
26. The “optic nerves behind the retina” take signals, to the: ____________________?
(a) brain
(b) Arm
(c) ear
(d) Nose
27. “Hearing” is helped, by?
(a) Optic nerve
(b) Auditory nerve
(c) sensory nerve
(d) motor nerve
28. Which “organ” is used, for tasting in known as: ______________________?
(a) Nose
(b) ear
(c) Tongue
(d) eye
29. The “outer ear” consists, of: ___________________?
(a) Pinna
(b) Ear canal
(c) Both A&B
(d) None of these
30. The main “source of energy” is: __________________?
(a) Sunlight
(b) Pollination
(c) respiration
(d) photosynthesis
