The answer is b the thumb has a mutation
Evolution is the process of natural selection. For species to survive they must be the best. Darwin had the theory of "Survival of the Fittest" however, there are many conflicting opinions.
True - The division of the cytoplasm to form two separate daughter cells immediately after mitosis, meiosis I, or meiosis II.
Species
Genus
Family
Order
Class
Phylum
Kingdom
Domain
Life