O Level Biology MCQs - Chapter 6

Ecology: O level Biology Multiple Choice Questions (MCQ Quiz) PDF - 1

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Biology MCQs: Ecology O level Biology Quiz PDF Download - 1

MCQ: The function of photosynthesis is taken up by green shoots in

A) hydrophytes

B) xerophytes

C) herbaceous

D) cortex

MCQ: To enable the materials locked up in dead organisms, main role is played by

A) primary consumers

B) secondary consumers

C) decomposers

D) detritivore

MCQ: In ecosystem, Secondary consumers are

A) plants

B) herbivores

C) carnivores

D) omnivores

MCQ: If the malaria is not treated, outcomes could include

A) death only

B) anemia only

C) heart failure

D) death and anemia

MCQ: Mosquito larvae and pupae can be exterminated through small fish like

A) guppies

B) gold fish

C) Tubifex worms

D) seahorse

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