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IGCSE O Level Biology Practice Test 190

Mouth and Buccal Cavity MCQ (Multiple Choice Questions) PDF - 190

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Mouth & Buccal Cavity MCQ Questions PDF Download: Quiz 190

MCQ 946: In digestive system of humans epiglottis is a

A) flap like bone
B) flap like cartilage
C) part of voice box
D) part of windpipe

MCQ 947: Thickness of lens is altered through

A) sclerotic coat
B) choroid coat
C) ciliary body
D) pupil

MCQ 948: Trace elements do not include

A) iodine
B) zinc
C) manganese
D) calcium

MCQ 949: Due to stress, an increased blood flow in brain and muscles can cause

A) painful muscles only
B) headaches only
C) heart attack
D) painful muscles and headaches

MCQ 950: Spasmodic contraction of the muscles that increases body temperature includes

A) breathing
B) panting
C) sweating
D) shivering

IGCSE O Level Biology Exam Prep Tests

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