Answer:
Evolution
Explanation:
Natural selection is the differential survival and reproduction of individuals due to differences in their phenotype. The organisms with the most favorable genetic traits are more likely to survive to pass on their traits to the next generation - survival of the fittest.
Natural selection drives evolution, which is the change in the inherited characteristics of a population over time. This can lead to the formation of new species.
Answer:
The individuals can also be classified on the basis of their psychology and happiness. The depressed individual remains unhappy and suffers from anxiety and enjoy the loneliness feeling.
The body dysmorphic disorder involves the situation in which individual is unable to move their body part. They are physically unfit but mentally be fit. The unhappy individual are physically fit but mentally and socially they are unfit.
Crusts and uppermost mantle
English please? i think i could help but i dont know what language that is
Viruses is the answer to this