IGCSE O Level Biology Practice Test 90

GCSE Biology MCQ (Multiple Choice Questions) PDF - 90

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GCSE Biology Questions and Answers PDF Download: Quiz 90

MCQ 446: Function of meninges is to protect

A) brain

B) heart

C) digestive organs

D) respiratory system

MCQ 447: In order to ensure insect pollination, number of carpels in gynoecium in Clitoria flower is

A) 1

B) 2

C) 3

D) 4

MCQ 448: In carbon cycle, the flow of energy is

A) linear

B) cyclical

C) reversible

D) irreversible

MCQ 449: Which is true about Nicotine (C₁₀H₁₄N₂)

A) a carcinogenic substance

B) makes blood clot easily

C) makes blood dilute

D) helps in lumen becoming narrower

MCQ 450: Nature of Chyme is

A) acidic

B) alkaline

C) neutral

D) depends upon the type of food eaten

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