Which of these is NOT a principle of the cell theory as it is currently understood?

Complete the possible outcomes for each generation in the pedigree chartaa aa aa

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 of the following explains why a tree is often used as a model to represent the principle of common descent