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Birds and Bats are good fliers, the bat differs from bird in having _____?

Birds and Bats are good fliers, the bat differs from bird in having _____?

پرندے اور چمگادڑ اچھے اڑنے والے ہیں ، بلے _____ ہونے میں پرندوں سے مختلف ہے؟
Explanation
  • Bats have a diaphragm, a muscle that helps in breathing, while birds lack a diaphragm and use air sacs for respiration.
  • Bats are mammals and have a four-chambered heart like birds, but they differ in their respiratory system.