How do scientists determine the evolutionary relationship among species?
They use a taxonomic map to help classify organisms. The placement of organisms on this was originally based on similarities between species. Today we are able to look at their actual genes, which has resulted in a better understanding of evolutionary relationships - or the lack of them- and has resulted in some re-classification.
Why similarities in the early development of different species suggest that the species are related?
When two species evolve together, having some relationship while evolving, they both leave traces of what the relationship was in their genetics. For instance, if you see one species with huge teeth, and another with thick skin, one might draw the conclusion that the relationship encompassed one species trying to eat the other.
Can similarities between living species and extinct species be used to determine their relationship to each other?
When trying to determine the evolutionary relationship between two species would a biologist concentrate on homologous features or analogous features?
Homologous features of animals are a lot more recent in contrast to evolution, where as analogous dates far back. Homologous features are similar in structure, but perform different functions, such as the human hands and dolphin flippers, which makes room to allow recent evolution comparisons while analogous consists of wings of a bee and a bird, which are completely different. When trying to determine evolutionary relationship between two species, biologists concentrate on homologous features, as…
How do you determine the evolutionary advantage for having taste buds that determine unpleasant bitter compounds in many plant species?
Comparative anatomy is the investigation and comparison of the structures of different animals. Scientists use comparative anatomy to study the difference between species and how they are alike in other ways. By comparing the similarities and differences between a number of species, scientists can then construct a picture of their evolutionary relationships.
True or false Similarities between living species and extinct species cannot be used to determine their relationship?
How comparisons between the proteins of two species can yield data about their evolutionary relationship?
Take the protein cytochrome C. There is not one amino acid difference in structure between we humans and our close relatives, the chimpanzees. There are 51 differences between humans and single celled yeast in amino acids. We can strongly and simply infer from this data the evolutionary relationship among the three species mentioned here.
The evolutionary theory that suggests that a species can suddenly and rapidly evolve into a new species is?
The goal is to group together species in larger categories reflecting the line of evolutionary descent rather than the species overall similarities and differences. This is known as Phylogeny or the history of lineages. Evolutionary classification groups species into clades. Clades are a group of species with a single common ancestor.