taxonomy
The similarity of the characteristics of sheep and reindeer is due to their having a common ancestor. This sort of phenomenon is called
the answer is a. (homology) just took the test
The similarity of sheep and reindeer is due to parallel evolution. This is when two species have a common ancestor and have developed similar traits, despite living in different areas.
A group of families having a common ancestor may be called a clan, a tribe, or a clade.
Homologous characteristics (as opposed to analogous characteristics, eg a bats wing and a birds wing). So I guess its called homology?
A group of families claiming a common ancestor is called a tribe or a clan.
homology
Evolutionary theory can account for the phenomenon of a new species. This is because different species can evolve from a common ancestor.
A trait shared with a common ancestor is called an inherited or ancestral trait.
a group of families is called realitives
A chart that illustrates a series of species with their common ancestor is called a phylogenetic tree or phylogeny. These trees show the evolutionary relationships and the common ancestry among different organisms.