Explain how a tuna is able to retain heat produced during activity and maintain

Question

Explain how a tuna is able to retain heat produced during activity and maintain a higher core temperature than the environment. Give three other examples of poikilotherms that maintain a warmer body temperature than ambient (all using different mechanisms) and explain in each case how this is facilitated (b) The naked mole-rat lives in a warm underground set of tunnels in dry parts of Kenya. It is a poiklothermic herbivorous mammals that has evolved a highly social lifestyle to make use of widely scattered food resources in these arid areas but unlike other desert rodents produce urine at the same maximum concentration as that seen in humans. Why would excellent urine concentrating abilities be not necessary in this arid environment?

Explanation / Answer

2.Snake- Snakes are cold-blooded animals enable to generate body heat internally and sometimes depends on the environment . The internal process is used to maintain the body temperature by lie in the sun for long periods of the day to warm up their internal temperatures and sometimes lie on large hot rocks for the conduction of the heat that increases body temperature and keep them warm during the day.

3.Fish- In fish, heating up and cooling down process takes place in the gills. At the time of breathing, fish takes oxygen from the water into the blood with the help of gills. Then blood leaves the gills and circulates throughout the fish’s body and supply oxygen to all muscles and organs. The blood which passed through the gills cooled down by colder water that rushes over the gills and warmed by surrounding warm water.

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