2017 · Q2
Statement IChameleon changes its skin colour to match with the colour of the Surroundings.
Statement IIThe skin of chameleon emits light of the colour of the surrounding through fluorescence.
general-sciencebiology-human-body
- ABoth the statements are individually true and Statement II is the correct explanation of Statement I
- BBoth the statements are individually true but Statement II is NOT the correct explanation of Statement I
- CStatement I is true but Statement II is false
- DStatement I is false but Statement II is true
Explanation
Statement I is true: chameleons change skin colour using specialised pigment cells called chromatophores, helping them blend with surroundings, regulate body temperature and signal to mates or rivals. Statement II is false: the skin does not emit light through fluorescence or any bioluminescence; the colour shift comes from dispersing or concentrating pigment granules inside the chromatophores. Since only Statement I is true, the answer is (C).