In the 13 question, flippers of penguins and dolphins are given as homologous. Is it true?

In the 13 question, flippers of penguins and dolphins are given as homologous. Is it true? do Oarwin's finches illustrate A Q. 12. HOW ICBSE sop. radiation . Ans. Original stock of seed-eating finches habitats (of Galapagos difterent teeding methods. by altered beak and evolved into different types of Q. 13. Choose two pairs of homologous structures the following and mention why they are so (i) Heart oi humans and monkeys (iii Eyes of octopus and mammals (iii) Thorns of Bougainvillaea and tendrils Of cucurbits (iv) Flippers of penguins & dolphins. [Delhi Set-I, CompttYJ1: Ans. Following are homologous organs (i) Thorns of Bougainvillaea and tendrits of cucurbits (ii) Flippers of penguins and dolphins They are homologous organs because they similar in origin and fundamental structural but due to their different need they have develop: differently, hence different in functions The indicate divergent evolution. J Q. 14. Divergent evolution leads to homologou structures. Explain with the help of an exampk [Delhi Comptt. 2011 Ans. Development of different functional s from a common ancestral form due to migration to different habitats and adaption new requirements is called divergent or adap radiation. For example—Darwin's finches of Galapagos rent $1