In most animals,the metabolic reactions proce | vedclass

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(A) Most organisms are stenothermal,meaning they can tolerate and thrive in a narrow range of temperatures. Metabolic reactions in these animals are h

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$A-$narrow; $B-100^{\circ} C$

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(A) Most organisms are stenothermal,meaning they can tolerate and thrive in a narrow range of temperatures. Metabolic reactions in these animals are highly sensitive to temperature fluctuations,hence they function within a narrow range (e.g.,$37^{\circ} C$ in humans).However,certain extremophiles like archaebacteria are capable of surviving in extreme environments such as hot springs and deep-sea hydrothermal vents,where temperatures can exceed $100^{\circ} C$.Therefore,the correct option is $A-$narrow and $B-100^{\circ} C$.

In most animals,the metabolic reactions proceed in a $A$ temperature range (in humans,it is $37^{\circ} C$). But there are microbes (archaebacteria) that flourish in hot springs and deep sea hydrothermal vents where temperatures far exceed $B$. Choose the correct option for $A$ and $B$.

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