A group of scientists determines that a mitochondrial DNA sequence shared by two species has a constant mutation rate. The seque
nces of mitochondrial DNA for the two species are shown below. Species A: GACTGGGCATTA Species B: GACCGGACATTA Based on this information, which of the following best explains the difference in the DNA sequence between the two species? Species A and B probably share the most recent ancestor because they only differ by three mutations. Species A and B have fewer differences between DNA sequences means that fewer mutations occurred. Species A and B probably have distinct ancestors because they have many differences in mutations. Species A and B are closely related because they differ by five mutations in their DNA sequence.
Naturalists represent the idea that only natural laws (physical laws) are the rules that govern the structure and behavior of the natural universe. This means that everything can be explained in terms of natural causes. Naturalism is the belief that all that exists material matter, that there is no such thing as soul and that individuals have no purpose in life.
Los organismos unicelulares se componen de una sola célula que lleva a cabo todas las funciones necesarias por el organismo, mientras que los organismos multicelulares utilizan muchas células diferentes para funcionar.
