IGCSE O Level Biology MCQs - Chapter 2
Co-ordination and Response: Animal Receptor Organs Multiple Choice Questions (MCQs) PDF Download - 1
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Co-ordination & Response Animal Receptor Organs Questions & Answers PDF Download: MCQ Quiz 1
MCQ 1: Amount of light entering eye is controlled through
- conjunctivitis
- eyelids
- eyelashes
- iris
MCQ 2: In dim light, the circular muscles
- contract
- relax
- denature
- inactivate
MCQ 3: Eyeball is kept firm and refracting light through
- aqueous humor only
- vitreous humor only
- saturated humor
- aqueous and vitreous humor
MCQ 4: In the outer corner of the upper lid of eye, is the
- lachrymal tear gland
- naso-lachrymal duct
- liberal palpebral ligament
- orbital part
MCQ 5: Innermost layer of eyeball is
- iris
- retina
- ciliary body
- pupil
IGCSE O Level Biology Mock Tests
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