phylogony Flashcards
what is the artificial classification
-Done for convenience
-Based on few characteristics
-Not reflect evolutionary links
-Limited information
-Stable
Natural classification
-More detailed study of in species
-Uses many characteristics
-Reflects evolutionary links
-Homology based
-Provide lot of useful info
-Could change as knowledge increases
Phylogeny advantages
-Dont need to use Linnaean system
-Gives continuous tree unlike classification.
-Illustrates time between species unlike classification that groups within same rank are equal
Homology
shared feature from same ancestor
Biological species concept
Ability of two individuals to produce healthy offspring
Morphological species concept
Whether individuals look similar
Phylogenetic species concept
how closely related individuals are evolutionary
Ecological species concept
whether individual uses/can use same set of bio resources