The statement that Charles Darwin came to realize that organisms of the same species are identical is false. Charles Darwin observing the finch population in the Galapagos discovery quite the opposite was true. The finch has branch off with many adaptation to suit the changes in the different environments.
The main difference between the typological species concept and the morphological species concept is that the typological species concept classifies organisms that share characteristics that set them apart from others, whereas the morphological species concept classifies them as the same species if they appear identical.
Chimpanzee
The book fully titled On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life, was written by Charles Darwin.
Lamarck did. Neodarwinism theorises that species evolve when gene frequencies change, not individual organisms. Larmarkism is true for epigenetic inheritance, favourable and unfavourable characteristics alike.
In basic terms: biologists classify organisms by species, genus and family.
Charles Darwin did recognize and categorize numerous species during his career. He also recognized that not all species were identical in all of their outward physical characteristics. He also realized that organisms of the same species were identical. He also observed that organisms living in different places with similar environment were different yet similar, thus concluding that they had the same ancestors.
Charles Darwin was the man who produced the theory of evolution, which describes how species of organisms, by a process of natural selection, gradually evolve into other species.
that all organisms are linked by common ancestry
Charles Darwin, "Origin of the Species"
The main difference between the typological species concept and the morphological species concept is that the typological species concept classifies organisms that share characteristics that set them apart from others, whereas the morphological species concept classifies them as the same species if they appear identical.
No two organisms have identical DNA, It depends on the molecular marker and species, DNA fingerprinting is a technique that is used to identify patterns that occur in DNA. One of the method consist using Restriction enzymes. Restriction enzymes always cut at the same base sequence. Because no two individuals have identical DNA, no two individuals will have the same length fragments. Different species of organisms have different proportions of bases.
species is a kind and organisms are things
species has more organisms than a kingdom.
Organisms in a species have characteristics that differ from those of other organisms in their genus.
Organisms in a species have characteristics that differ from those of other organisms in their genus.
All species of bacteria (and several other organisms) reproduce by cloning, so two unmutated bacteria of the same species have identical DNA, and are as closely related as it is possible to be. This is true for all clones.
Chimpanzee