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IGCSE O Level Biology Certification Exam Tests

IGCSE O Level Biology Practice Test 105

GCE Biology Quiz Questions and Answers PDF - 105

The e-Book GCE Biology Quiz Questions, gce biology quiz answers PDF download chapter 19-105 to study online igcse biology degree courses. Practice What Are Enzymes MCQ with answers PDF, gce biology Multiple Choice Questions (MCQ Quiz) for online college degrees. The GCE Biology Quiz App Download: Free learning app for gce biology, parasitism: malarial pathogen, atmospheric pollution, wind dispersed fruits and seeds, thyroxin function test prep for online associates degree.

The Quiz: Enzymes are largely composed of; "GCE Biology" App Download (Free) with answers carbohydrates, fat, proteins and minerals for online certificate programs. Solve what are enzymes questions and answers, Amazon eBook to download free sample for best SAT prep courses online.

GCE Biology Questions and Answers PDF Download: Quiz 105

MCQ 521: Enzymes are largely composed of

A) fat
B) carbohydrates
C) proteins
D) minerals

MCQ 522: Larvae breath through the help of

A) feeding brushes
B) pair of air floats
C) pair of spiracles
D) pair of gills

MCQ 523: Profuse growth of algae occurs due to

A) hydrogen sulphide in water
B) nitrates and phosphates in water
C) carbon dioxide in water
D) chlorine in water

MCQ 524: Small size and light weight ensures

A) proper seed dispersal
B) seed dispersal through wind
C) seed dispersal through water
D) seed dispersal through insects

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

A) myxedema
B) heart attack
C) meningitis
D) obesity

IGCSE O Level Biology Exam Prep Tests

GCE Biology Learning App & Free Study Apps

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GCE Biology App (Android & iOS)

GCE Biology App (Android & iOS)

O Level Biology App (Android & iOS)

O Level Biology App (Android & iOS)

Cell Biology App (Android & iOS)

Cell Biology App (Android & iOS)

9th Grade Biology App (Android & iOS)

9th Grade Biology App (Android & iOS)