26-The diagram below shows the bone structure of a whale flipper and a bat wing.

Question

26-The diagram below shows the bone structure of a whale flipper and a bat wing. Which of the following suggests that these two structures are homologous rather than Whale Bat a The flipper is formed from the entire front appendage of the whale, but the wing is only formed from the hand part of the front appendage of the bat. b. The bones that form the five fingerlike projections in the flipper have much thicker bones than the bones that form these projections in the bat. c Both the flipper and the wing contain five fingerlike bone projections d The flipper ofthe whale contains more bones than the wing of the bat

Explanation / Answer

Homology indicates common evolutionary origin so common structure but different function. So the option C which says that both contain finger like projections is right answer.

The pangea separate into multiple continents. The north north a and Eurasia shared common plants and animals due to their common geographic isolation from rest of continents. Hence option C is right. Eurasia comprises of Europe and Asia. They all will have simile plants and animals.

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