Lab 2: Species Definitions & Applications

Question 1

Morphological Definition of a Species

Answer 1

A definition of species in terms of measurable anatomical criteria.

The morphological species the morphological notion of the species is often regarded as a variation of the concept of the typical species consisting in joining together in a species of the individuals having of the character morphological similar. It is not the case, because it is often a practical definition. Thus Darwin, any evolutionist who it was, had a morphological approach of the species since it wrote in 1859: “the term of species is given arbitrarily for practical reasons to a resembling itself group of individuals.

Question 2

biological species concept

Answer 2

Definition of a species as a group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring, but do not produce viable, fertile offspring with members of other such groups.

Question 3

phylogenetic species concept

Answer 3

A definition of species as the smallest group of individuals that share a common ancestor, forming one branch on the tree of life.