Basis of Classification Flashcards
(22 cards)
Father of biology
Aristotle
How was classification done earlier
Instinctively
The scientific basis of classification
Aristotle
Morphological characters
Aristotle
Aristotle Plant classification
Trees, shrubs, herbs
Aristotle animal classification
Red-blooded, Non-Red-blooded
Linnaeus
2 Kingdom classification
Plantae
Animalia
Drawbacks of 2 kingdom
Did not distinguish between
eukaryotes and prokaryotes
unicellular and multicellular
photosynthetic and non-photosynthetic
2 Kingdom classification
used for a long time, but inadequate
A large number of organisms was neither in plants nor animals
How did classification evolve
Besides gross morphology, Cell structure Nature of wall Habitat Mode of nutrition Mode of reproduction Evolutionary relationships
Classification system
Undergone many changes over time
plants and animals constant, understanding of organisms included changed
Who proposed 5 kingdom classification
W.H.Whittaker
Who proposed the 5 kingdom classification?
R.H.Whittaker
R.H.Whittaker
1969
5 Kingdom classification
Monera Protista Fungi Plantae Animalia
Criteria used by R.H.Whittaker
Cell structure Body organisation Mode of nutrition Mode of reproduction Phylogenetic characters
3 Domain system
Carl Woese
3 Domain system
Kingdom monera into 2 domains
All other eukaryotic organisms into 3 domain
3 Domain classification
6 Kingdom classification
What influenced 5 kingdom classification
Earlier classification included bacteria, fungi, blue-green algae, ferns, gymnosperms, angiosperms, mosses under”Plants”
What character unified “Plants” in earlier classification
Cell wall
What organisms did earlier classification bring together
Prokaryotic bacteria, blue-green algae and eukaryotic bacteria
Unicellular Chlamydomanas and Multicellular Spirogyra
Heterotrophic Fungi and Autotrophic Green plants
