IGCSE O Level Biology MCQs - Chapter 2

Co-ordination and Response: Animal Receptor Organs Multiple Choice Questions (MCQ) PDF - 4

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Co-ordination & Response Animal Receptor Organs Questions & Answers PDF Download: MCQ Quiz 4

MCQ 16: Rectus muscles are used to

A) hold the eye in the depression in the skull

B) help the eye rotate without moving the head

C) help the eye blink

D) to hold the eye in space

MCQ 17: Layers forming the eyeball walls are made up of

A) single tough layer

B) double layers

C) three layers

D) four layers

MCQ 18: Pupil is located inside the

A) iris

B) sclerotic coat

C) choroid coat

D) lens

MCQ 19: Eye is nourished through

A) sclerotic coat

B) choroid coat

C) iris

D) pupil

MCQ 20: Friction between eyelid and exposed part of eye ball is reduced through

A) water splashes

B) repetitive blinking of eye

C) tear lubrication through lachrymal tear gland

D) vitreous humor

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