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State two structural modification of the kidney of desert animals

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State two structural modification of the kidney of desert animals

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Solution

Desert animals have evolved to survive in extremely dry and hot conditions. Their kidneys have undergone structural modifications to help them conserve water. Here are two such modifications:

  1. Longer Loops of Henle: The Loop of Henle in the kidney plays a crucial role in the concentration of urine. Desert animals, such as kangaroo rats, have longer Loops of Henle compared to other animals. This allows for more reabsorption of water back into the body, producing highly concentrated urine and reducing water loss.

  2. Increased Number of Nephrons: Nephrons are the functional units of the kidney responsible for filtering blood and producing urine. Desert animals have a higher number of nephrons compared to other animals. This allows for more efficient filtration and reabsorption processes, leading to less water loss through urine.

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Which organ produces urea in mammals?

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