The scientific method 1. begins with hypothesis 2.ends with predictions 3. ends after experiment 4.does not require a hypothesis

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.

Which muscle is responsible for inhalation ?

If animal agriculture was eliminated, how much grain would become available for human consumption?