Biology, 10.10.2019 12:50 jojoangelique13
In the normal course of evolution and adaptation, what is the most likely way for wings to develop in a tetrapod (four-limbed organism)?
a major mutation will produce new limbs, called wings, with a skeletal structure suited to flight. if this does not happen, flight cannot be achieved.
the forelimbs (or possibly hind limbs) will be used for the new purpose of flight. this new function will arise through many gradual steps, and there will be aspects of the wing that reflect its history and are not perfectly suited for flight.
a new, third pair of limbs will form. unlike the other four limbs, these wings will have a lightweight skeletal structure that is designed "from scratch" and is perfectly suited for supporting flight.
the forelimbs (or hind limbs) will be used for the new purpose of flight. natural selection will totally rearrange the elements of the skeleton to perfect the limb for its new function as a wing.
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In the normal course of evolution and adaptation, what is the most likely way for wings to develop i...
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