Which pair represents an example of analogous structures in animals? A. lizard leg and bird wing
B. whale flipped and lizard leg
C. bird wing and penguin flipper
D. fish tail and penguin flipper

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers