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Biology 13 Online
OpenStudy (anonymous):

Can someone please help me with this question please???

OpenStudy (anonymous):

In summer, certain lizards have a low critical minimum temperature of 2.5ºC. In winter, these same lizards have a critical minimum temperature of -1.2ºC. The lizards do not freeze at this critical minimum temperature, even though this is below the freezing point for their blood. They are able to move under the snow while in this supercooled state at a temperature slightly above -1.2ºC. Hypothesize as to how the lizards are able to keep from freezing at temperatures below 0ºC.

OpenStudy (anonymous):

In other words how is it possible for a lizard to be below freezing and still be alive?

OpenStudy (anonymous):

If we talk precisely the answer to your Q' is : lizards are cold blooded animals bcoz they are reptiles, they have few traces of anti-freeze agent that is glycerol as a constituent of blood due to which they are able to survive in temperature below 0'C

OpenStudy (anonymous):

same thing hapeen in arctic marince animals in their boly fluid glycerol is present and from not getting freezed special protein is made by their body called antifreezing protein

OpenStudy (anonymous):

*arctic marine

OpenStudy (anonymous):

Lizards are reptiles which produce little or no heat at all during metabolism. They require less heat for survival compared to mammals.

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