IGCSE O Level Biology Exam Prep MCQs – Mock Test 164

Heart: O Level Biology MCQ with Answers PDF Download – Test 164

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Heart: O Level Biology MCQ – Mock Test 164 PDF Download

MCQ 816: Left atrium moves to left ventricle, carrying:

oxygenated blood
deoxygenated blood
oxyhemoglobin
carboxyhemoglobin

MCQ 817: When the brain is viewed from above in man, the visible part of brain is:

medulla oblongata
Cerebral hemisphere
cerebellum
pituitary gland

MCQ 818: Rickets is caused due to the deficiency of:

Vitamin B complex
Vitamin E
Vitamin K
Vitamin D

MCQ 819: In plants upon soaking, the testa:

sheds itself
becomes swollen
becomes permeable for gaseous exchange
becomes hard

MCQ 820: Lives of organisms are greatly affected by:

Producers
Consumers
Decomposers
consumers and decomposers

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