O Level Courses

Chapter 6: IGCSE O Level Biology Exam Tests

IGCSE O Level Biology MCQs - Chapter 6

Ecology: O level Biology Multiple Choice Questions (MCQs) PDF Download - 21

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Ecology O level Biology Questions and Answers PDF Download: MCQ Quiz 21

MCQ 101:

Mosquito eggs hatch out in the larvae in

  1. 2 days
  2. 4 days
  3. 6 days
  4. 1 week
MCQ 102:

A large amount of dilute urine is produced in

  1. freshwater bony fish
  2. marine bony fish
  3. marine boneless fish
  4. freshwater boneless fish
MCQ 103:

PH (power of Hydrogen) of about 8 is characteristic of

  1. sea water
  2. fresh water
  3. stagnant water
  4. lime water
MCQ 104:

Fish can come to the surface of the water for air-breathing in waters of

  1. low oxygen concentration
  2. high oxygen concentration
  3. low hydrogen concentration
  4. high hydrogen concentration
MCQ 105:

Plants capable to survive conditions of extreme drought are

  1. xerophytes
  2. hydrophytes
  3. cortex
  4. herbaceous

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Ecology O level Biology App (Android & iOS)

Ecology O level Biology App (Android & iOS)

O Level Biology App (Android & iOS)

O Level Biology App (iOS & Android)

Molecular Biology App (Android & iOS)

Molecular Biology App (Android & iOS)

A level Biology App (Android & iOS)

A level Biology App (iOS & Android)