Respuesta :
The horse and mouse are endotherms among them rat will have high mass-specific metabolic rate.
The shark and fish are endotherms among them fish will have high mass-specific metabolic rate.
Explanation:
The endotherm (heat requires in them to maintain internal temperature of the body) organism have high metabolic rates to maintain homeostasis, this requires the large amount of energy. Smaller animals have the greater surface area to volume ratio, hence more heat loss and higher metabolism. In larger animals body volume increases, surface area increase is also very slow, hence less heat loss and lower Metabolic rate. Smaller animals exchange oxygen to tissues at a high rate.
Same goes with ectotherms the larger the animal the smaller is the metabolic rate. During winters their activity slows down as they cannot adjust with the temperature of the surrounding.
However metabolic rates of ectotherm and endotherm cannot be compared.
The organism that will have the lowest mass-specific metabolic rate is the 100 kg shark.
Metabolic rates simply refer to how sugar is broken down to keep the cells of an organism running. Different organisms have different metabolic rates.
It should be noted that bigger animals have lower metabolic rates As the body volume of an organism increases, the surface area increases slowly. From the organisms, the 100 kg shark will have the lowest metabolic rate.
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