Describe the common mechanism of action of molecules that taste sweet umami and bitter

Which of the rock examples below is most likely to be metamorphic

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.

What abo controlling alleles could kim give her child