OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The platypus can live in all the places inhabited by mammals and reptiles.
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The platypus is like a reptile when born but behaves like a mammal as an adult.
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The platypus provides evidence that mammals have gradually evolved from reptiles through intermediate stages.
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The platypus provides evidence that reptiles have gradually evolved from mammals through intermediate stages.
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Detailed explanation-1: -It shows mammalian characters like mammary glands, hair, diaphragm, single aortic arch etc. It shows reptilian characters in having a large coracoid in pectoral girdle and in laying eggs with yolk and shell. Hence, option C is correct.
Detailed explanation-2: -Duck-billed platypus (Ornithorhynchus) is a connecting link between reptiles and mammals. It shows mammalian characters like mammary glands, hair, etc. It shows reptilian characters in in laying eggs with yolk and shell.
Detailed explanation-3: -The duck-billed platypus is a semi-aquatic egg-laying mammal found in Tasmania and Australia. It is a connection between reptiles and mammals, as it possesses both reptilian and mammalian characteristics.
Detailed explanation-4: -Duck-billed platypuses are small, shy animals. They have a flattened head and body to help them glide through the water. Their fur, dark brown on top and tan on their bellies, is thick and repels water to keep them warm and dry even after hours of swimming.
Detailed explanation-5: -The platypus is classed as a mammal because it has fur and feeds its young with milk. It flaps a beaver-like tail. But it also has bird and reptile features-a duck-like bill and webbed feet, and lives mostly underwater.