Question
Biology Question on evolution
A living connecting link which provides evidence for organic evolution is
A
Sphenodon between reptiles and birds
B
Archaeopteryx between reptiles and birds
C
Lung fishes between pisces and reptiles
D
Duck billed platypus between reptiles and mammals
Answer
Duck billed platypus between reptiles and mammals
Explanation
Solution
Egg-laying mammals (e.g., duck-billed platypus) bear hair and mammary glands, but also possess some of the reptilian characters such as laying of eggs, presence of cloaca and some skeletal similarities. Thus, they are connecting link between reptiles and mammals. An extinct organism with characters intermediate between two classification groups is known as missing link e.g., Archaeopteryx.