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Question
Creeping vertebrates lack________
Creeping vertebrates lack________
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Solution
The correct option is C external ear opening
Class Reptilia represent creeping vertebrates like snakes. They have exoskeleton in the form of scales on their bodies. They also have a cloaca, which is a posterior orifice that serves as the only opening for the digestive, reproductive, and urinary tracts of many vertebrate animals. Reptiles only have middle ear and internal ear, they lack external ear.
Presence of an external ear is an exclusive character of mammals.
Class Reptilia represent creeping vertebrates like snakes. They have exoskeleton in the form of scales on their bodies. They also have a cloaca, which is a posterior orifice that serves as the only opening for the digestive, reproductive, and urinary tracts of many vertebrate animals. Reptiles only have middle ear and internal ear, they lack external ear.
Presence of an external ear is an exclusive character of mammals.
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