What are the two types of fermentation? 1) lactic acid & ethyl alcohol 2) pyruvic acid and glycolysis 3) lactic acid and pyruvic acid 4) pyruvic acid and ethyl alcohol

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.