An organ represents a higher level of structure than the tissue composing it and performs functions that the tissues cannot perform alone. this is an example of the principle of:

This is an example of organizational heirarchy.

Explanation: These biological structures are designed in a way that the whole system consist of different parts serving its own unique purpose, making up a full functional system. It goes from; atoms, molecules,cells, tissues and organs which makes up a system. Digestive system for example is composed of atoms, molecules,cells, tissues and organs that helps to digest amd convert food into energy(ATP).

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.