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IGCSE O Level Biology Practice Test 324

Physical Environment: Ecology MCQ Questions and Answers PDF - 324

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Physical Environment: Ecology MCQ with Answers PDF Download: Quiz 324

MCQ 1616: If plants absorb carbon dioxide (CO2) in water (H2O), the water becomes

A) alkaline
B) acidic
C) neutral
D) salty

MCQ 1617: Chlorophyll is a chemical substance, exists in chloroplasts of plants, with the property of

A) green in color
B) changeable through light spectrum.
C) not green in color
D) absorbing red and blue light more, then other colors.

MCQ 1618: Nasal cavities and Eustachian tubes open in

A) Larynx
B) Pharynx
C) Trachea
D) Glottis

MCQ 1619: Internal skeleton is made up of bones and cartilage in

A) mammals
B) nematodes
C) arthropods
D) Echinodermata

MCQ 1620: Long term effects are incurred in man due to imbalance of

A) adrenaline
B) thyroxin
C) testosterone
D) progestrone

IGCSE O Level Biology Exam Prep Tests

Physical Environment Ecology Learning App & Free Study Apps

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