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

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

Which describes the habitat of a frog?

What is used as a template during replication? a- mrna b- trna c- rrna d- dna