What is meant by natural variation in living things? 1.Different species have different attributes.
2.Different individuals within a species have variation because they may express
different alleles for the same traits.
3.All the possible trait variations of a single population
4.The number of organisms a given area will support.

Which of the following would be least likely to support the modern concept of biological evolution? ( 2 points) a)different species of organisms with similar bone patterns b)different species of organisms with similar reproductive rates species in c)different domains with similar metabolic pathways species in d)different kingdoms with similar cellular structures.

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.