If enough evidence accumulates to support a hypothesis, it moves to the next step — known as a theory — in the scientific method and becomes accepted as a valid explanation of a phenomenon. Tanner further explained that a scientific theory is the framework for observations and facts.
Answer:
Adaptation to there environment
The structure in the image provided is of the womb of a pregnant woman. The major function of Structure X is to exchange materials between the mother and the fetus.
BB and Bb would be blue because they are both dominant and bb would be green because it is recessive