Sense Organ and Senses
To hear sound, the ear has to do
direct the sound waves into the hearing part of the ear
sense the fluctuations in air pressure
translate these fluctuations into an electrical signal that the brain can understand
all of them
all of them
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The renewal of skin is a good thing, because of skin sheds approximately 50 million cellsA. every second
B. every day
C. every minute
D. every week
The region of retina where no image is formed and it contains no rods or cones is known as
A. choroid
B. blind spot
C. yellow spot
D. cornea
The cavity of the nose is generally known as
A. nerve impulse
B. nasal cavity
C. nostril
D. nosepiece
The image cast on our retinas is
A. three-dimensional
B. two-dimensional
C. four-dimensional
D. three dimensional
The part of ear that directs sound waves towards the external auditory unit is known as
A. pinna
B. ear lobe
C. ear canal
D. ear drum
The ability to maintain a constant movement without falling is known as
A. equilibrium
B. balance
C. static
D. movement
The fluid tubes that help in balance are known as
A. Semicircular canals
B. pinna
C. eardrum
D. cochlea
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