Science Class 6th
61. Small opening in Iris is called?
A. Lens
B. Pupil
C. Choroid
D. None of these
62. Lens lies behind the _______?
A. Chornea
B. Choroid
C. Pupil
D. All of these
63. Middle layer of eye is?
A. Choroid
B. Sclerotic
C. Eye ball
D. None of these
64. The color of choroid is?
A. White
B. Brown
C. Black
D. Red
65. Blood vessels which brings nutrients and oxygen to eyes is present in?
A. Sclerotic
B. Choroid
C. Eye
D. None of these
66. _______ is the inner most layer of eye ball.
A. Retina
B. Choroid
C. Eye
D. None of these
67. The image of the object is formed on?
A. Choroid
B. Retina
C. Sclerotic
D. None of these
68. Which part of the eye is made up of sensory cells?
A. Eye ball
B. Sclerotic
C. Retina
D. None of these
69. _______ take signals to the brain to see objects
A. Choroid
B. Lens
C. Retina
D. Optic Nerves
70. Light enters to the eye through
A. Cornea
B. Choroid
C. Sclerotic
D. All of these
71. ________ image is formed on Retina
A. Upright
B. Retina
C. Inverted
D. None of these
72. Funnel like structure in ear is called ________.
A. Canal
B. Ear
C. Pinna
D. None of these
73. A membrane present in ear is called ________.
A. Cell membrane
B. Plasma membrane
C. Ear drum
D. All of these
74. Three tiny bones present in ear are called?
A. Ossicles
B. Bones
C. Ear bones
D. Small bones
75. Ossicles vibrate with the vibration of?
A. Ear
B. Sound
C. Ear drum
D. Song
76. Semi circular and coiled structure in ear is called?
A. Cochlea
B. Bones
C. Structures
D. None of these
77. Cochlea is present in?
A. Middle ear
B. Inner ear
C. Outer ear
D. Ear
78. Cochlea is filled with?.
A. Gas
B. Fluid
C. Both (a) and(b)
D. None of these
79. Tiny hair cells connected with auditory nerves is present in?
A. Outer ear
B. Inner ear
C. Middle ear
80. Smallest bones in the body are?
A. Eye bones
B. Finger bones
C. Ear bones
D. Toe bones