Genetic diversity serves as a way for populations to adapt to changing environments. With more variation, it is more likely that some individuals in a population will possess variations of alleles that are suited for the environment. Those individuals are more likely to survive to produce offspring bearing that allele.
This is true - psychology measures observable behaviours and used scientific methods
Answer:
Phalanges: long bones
Sternum: flat bone
Vertebrae: Irregular bone
For growth, repair and differentiation