IGCSE O Level Biology MCQs – Mock Test 105

GCE Biology Quiz with Answers PDF Download – Test 105

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GCE Biology Quiz – Mock Test 105 PDF Download

MCQ 521: Enzymes are largely composed of:

fat
carbohydrates
proteins
minerals

MCQ 522: Larvae breath through the help of:

feeding brushes
pair of air floats
pair of spiracles
pair of gills

MCQ 523: Profuse growth of algae occurs due to:

hydrogen sulphide in water
nitrates and phosphates in water
carbon dioxide in water
chlorine in water

MCQ 524: Small size and light weight ensures:

proper seed dispersal
seed dispersal through wind
seed dispersal through water
seed dispersal through insects

MCQ 525: Apart from other reasons, excess thyroxin may cause:

myxedema
heart attack
meningitis
obesity

IGCSE O Level Biology Quiz App & eBook – GCE Biology Admission Tests

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