Three Schools of Systematics

Question 1

What are the three schools of systematics?
(EC, Clad, Phe)

Answer 1

1. Evolutionary Classification
2. Cladistics
3. Phenetics

Question 2

Classification based o visible similarity

Answer 2

Evolutionary Classification

Question 3

similar characters as inherited from a common ancestor

Answer 3

Homologous characters

Question 4

Evidence used- ranging from the _______________and ____________________ of living organisms to the ______________________ of fossils.

Answer 4

taxonomic attributes
geographical distribution
stratigraphical distribution

Question 5

primitive traits that are inherited from distant ancestors.

Answer 5

Plesiomorphic

Question 6

derived traits that just appeared (by mutation) in the most recent ancestor.

Answer 6

Apomorphic

Question 7

diagram that depicts the lines of evolutionary descent of different species

Answer 7

Phylogenetic Tree

Question 8

Major Proponents/Defenders of Evolutionary Systematics

Answer 8

George Gaylord Simpson
Ernst Mayr 1969

Question 9

depict hypotheses about how organisms are related based on traits of ancestor and descendent species

Answer 9

Cladistics

Question 10

a group of organisms that descended from one common ancestor

Answer 10

Clades

Question 11

proposes hypothesis of phylogenetic relationships between species based on shared characteristics

Answer 11

Cladograms