It's not so much the organism or a type of organism that is difficult to define as a species but rather the differences in the theories regarding the definition of the word 'species'. For example the Biological species concept and phylogenetic species concept can be at odds when looking at convergent/parallel evolution.
asexual
asexual
It's not so much the organism or a type of organism that is difficult to define as a species but rather the differences in the theories regarding the definition of the word 'species'. For example the Biological species concept and phylogenetic species concept can be at odds when looking at convergent/parallel evolution.
The term
The term niche is used to define the role an organism plays within a community.
Species are organisms that can breed and give rise to a viable offspring. However, mules (a crossbreed of a donkey and horse) cannot give rise to viable offspring after breeding. It is difficult to apply the term species when referring to such organisms.
The relationship between the terms species and organism isthat they are both living. Organisms are in a species.
The term niche is used to define the role an organism plays within a community.
Genus and Species
Keytone Species
genome
Keytone Species
define and compare the term species, population, and ecosystem
It means a species in in danger of being extinct