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.

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards. the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote

Patient has just received an organ transplant which treatment would be most effective in preventing the patient’s body from