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What is the function of the interdigital membranes in frogs? Do all frogs posses them? Explain.​

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marianaegarciaperedo

Answer:

  • Function: To improve the animals´ movement and displacement on water.
  • Not all frogs have well-developed membranes. Those with terrestrial habits exhibit reduced interdigital tissue.

Explanation:

  • The interdigital membrane is the skin between the fingers and toes of the animals. This tissue is resistant and flexible. Its expansion varies among species and depends on their habits. The principal function of these membranes is to improve the animals´ movement and displacement on water. This tissue represents a broader area that provides resistance to water so the animal can swim faster and longer. On the ground, these membranes also can be useful while jumping, but this is not its principal function.
  • The development of the interdigital membrane show variation among amphibians. In those taxa that spend most of their time in the water, the membranes are extensive and well-developed. On the contrary, groups that spend most of their lives on the ground, on trees, and other vegetation, exhibit poorly-developed membranes or almost absent.
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