Which statement best explains the principle of uniformitarianism? a. weathering occurs in warm and cold climates. b. weathering and deposition occur at the same rate. c. man-made structures can be created from rock. d. similar events and features occur in old and new rock layers.

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.