Identify the correct option Statement – I: Some insects add glycerol to their blood as antifreezing agent during winter. Statement – II: Insects are temperature regulators.
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Remember: Poikilotherms cannot regulate their internal body temperature like mammals or birds do.
Many insects do produce glycerol or other antifreeze proteins to survive extremely low winter temperatures, so Statement I is true. However, insects are poikilothermic (cold-blooded) and do not regulate their body temperature internally, making Statement II false.