how many species ?

Question 1

morphological species

Answer 1

( what they look like )

a species recognized soley on the basis of its morphology

Question 2

biological species

Answer 2

interbreeding natural populations that do not successfully mate/reproduce with other groups

Question 3

evolutionary species

Answer 3

single lineage of ancestor-descendent

populations distinct from other such lineages and which has its own evolutionary tendencies and historical fate.

Question 4

Aristole

Answer 4

enquiries into animals

great chain of being
( god - angles - demons - man - animals - plants - minerals )

progress to sanguineous ( with blood ) from non-sanguineous

Question 5

Theophrastus

Answer 5

enquiries into plants

Question 6

Carl Linnaeus

Answer 6

hierarchial classification of life

kingdom - class - oredr - family - genus - species

based on how organisms look

Question 7

Charles Darwin

Answer 7

evolution - introduction of reltionships between organisms

Question 8

5 kingdom approach

Answer 8

plantae - fungi - animalia - protista - monera

emphasises macroscopic over microscopic life