Measuring Pulse Beats
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Questions and Answers

What is the main component of sweat?

  • Urea
  • Water (correct)
  • Uric acid
  • Ammonia

Which animal excretes a semi-solid, white colored compound?

  • Humans
  • Birds (correct)
  • Lizards
  • Fishes

What is the major excretory product in humans?

  • Uric acid
  • Urea (correct)
  • Water
  • Ammonia

What happens when a person's kidneys stop working?

<p>Waste products accumulate in the blood (A)</p> Signup and view all the answers

How much urine does an adult human pass in 24 hours on average?

<p>$1.5-1.8$ L (B)</p> Signup and view all the answers

Which component is found in only about 2.5% of human urine?

<p>Ammonia (A)</p> Signup and view all the answers

Why does water stored in an earthen pot (matka) remain cooler?

<p>$H_2O$ evaporation from the pores of the pot (B)</p> Signup and view all the answers

Which compound is directly dissolved in water by aquatic animals as a waste product?

<p>$Ammonia$ (C)</p> Signup and view all the answers

What causes white patches to form on clothes in summer?

<p>$Salt$ left by sweat (C)</p> Signup and view all the answers

Where is urine stored before being passed out through the urethra?

<p>Bladder (D)</p> Signup and view all the answers

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