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IGCSE O Level Biology Certification Exam Tests

IGCSE O Level Biology Practice Test 324

Physical Environment: Ecology Multiple Choice Questions (MCQ) PDF - 324

The Physical Environment Ecology MCQ with Answers PDF, Physical Environment Ecology Multiple Choice Questions (MCQs) PDF Download e-Book Ch. 6-324 to prepare IGCSE O Level Biology Practice Tests. Study Ecology O level Biology Test PDF, Physical Environment Ecology Multiple Choice Questions (MCQ Quiz) for schools that offer online bachelor degrees. The Physical Environment: Ecology MCQ Quiz App Download: Free certification app for physical environment: ecology, biology test questions, mouth and buccal cavity, internal skeleton, hormones: endocrine glands test prep to learn online school courses.

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Physical Environment: Ecology Questions and Answers PDF Download: Quiz 324

MCQ 1616:

If plants absorb carbon dioxide (CO2) in water (H2O), the water becomes

  1. alkaline
  2. acidic
  3. neutral
  4. salty
MCQ 1617:

Chlorophyll is a chemical substance, exists in chloroplasts of plants, with the property of

  1. green in color
  2. changeable through light spectrum.
  3. not green in color
  4. absorbing red and blue light more, then other colors.
MCQ 1618:

Nasal cavities and Eustachian tubes open in

  1. Larynx
  2. Pharynx
  3. Trachea
  4. Glottis
MCQ 1619:

Internal skeleton is made up of bones and cartilage in

  1. mammals
  2. nematodes
  3. arthropods
  4. Echinodermata
MCQ 1620:

Long term effects are incurred in man due to imbalance of

  1. adrenaline
  2. thyroxin
  3. testosterone
  4. progestrone

IGCSE O Level Biology Exam Prep Tests

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Physical Environment Ecology App (Android & iOS)

Physical Environment Ecology App (Android & iOS)

O Level Biology App (Android & iOS)

O Level Biology App (iOS & Android)

Zoology App (Android & iOS)

Zoology App (Android & iOS)

10th Grade Biology App (Android & iOS)

10th Grade Biology App (iOS & Android)