Which term best demonstrates when an organism is better adapted to the environment that they live in and are more likely to survive and reproduce?

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

The carrier molecules of the electron transport system are located in the

Why has two different alleles for the same trait?