Answer:
Step-by-step explanation:
An acquired trait is a characteristic that a living being develops through its life, and an inherited trait is a characteristic that living beings are born with.
Natural selection is the "supremacy of the strongest", which means that only the ones who are better adapted to certain habitat will survive, while the ones who aren't, will naturally die.
Adaptation is when a specie, through different generations, develop certain characteristic that allows them to survive under particular conditions.
The premises around the theory of natural selection are: A ineritable characteristic is needed. That characteristic chould differ among the members of the same species. Variability should be important for survival or reproductive sucess, allowing some new characteristics to appear among the population.
According to scientific studies, there are 7.777 millions of different animal species.