Question

1)The body temperature of a particular species of fish in a pond was measured and was found to correlate with the temperature of the pond, ranging from 4 degrees C in winter to 24 degrees C in summer. Remarkably, the metabolic rate of the fish remained virtually constant between these extreme temperatures. This trait exhibited by the fish is an example of

2)Loop diuretics are a class of medications used in the treatment of congestive heart failure and chronic kidney disease. They act on the ascending limb of the loop of Henle to reduce the uptake of electrolytes. The effect this would have on the kidney would be to:

Answer 1

Q) Endotherms produce there own heat.

Ectotherms get heat from environment.

Homeotherms have constant body temperature.

Poikilotherms adjust according to external temperature.

Most fishes are ectothermic as in given example.

Ectotherms have constant metabolic rate irrespective of external temperature.

Q) Loop diuretics act on loop of Henley. It reduce uptake of electrolytes from ascending limb of loop. This results in more water get out into the filtrate from nephron. That is effective diuresis or more urine production.