IGCSE O Level Biology Practice Test 145

Introduction to Biology Quiz Questions and Answers PDF - 145

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Introduction to Biology Questions and Answers PDF Download: Quiz 145

MCQ 721: Outermost covering in animals is called as

epithelium
mesophyll
lignin
cellulose

MCQ 722: Cadmium is an example of

organic waste
inorganic waste
nitrogenous waste
carbonic waste

MCQ 723: Distance between the stigma and anthers in the same flower,

reduces the chances of self pollination
enhances the chances of self pollination
reduces the chances of cross pollination
enhances the chance of cross pollination

MCQ 724: Blood pressure required for ultrafiltration is provided through

simple mechanical process
afferent arteriole
efferent arteriole
heart beat

MCQ 725: During oxygen (O₂) debt, the lactic acid (C₃H₆O₃) is removed from

liver
muscles
lungs
mucus

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