BIOLOGICA
CLASSIFICATION
THE EARLY APPROACHES
Aristotle classified animals in Linnaeus gave 2 kingdom Aristotle was first to give scient
groups like enemia (having red classification i.e. plantae (bacteria, classification by classifying pla
BGA, Fungi, mosses, ferns,
blood) & anemia (the one not into tree, herbs, and shrubs (ba
gymnosperms, angiosperms)
having red blood). on morphological characters
& animals on basis of presence of
cell wall. and animals into anaima & ena
ISSUES IN THE EARLY APPROACHES BASIS
• It brought together prokaryotic bacteria & blue
• C
green algae (BGA).
• Unicellular (eg-Chalamydomonas) & multicellular • Th
(eg- Spirogyra) were placed together.
• M
• Organisms with different cell wall were placed together
like fungi having chitinous cell wall was placed with
• Re
plants having cellulosic cell wall. • Ph
• No differentiation between mode of nutrition i.e.,
heterotrophic fungi were placed with autotrophic plants.
KINGDOM MONERA
INTRODUCTION ARCHAEBACTERIA EUBACTERIA
They live in all type of habitat, even the (PRIMITIVE/ANCIENT)
extreme ones. Characterised by presence of rigid
CLASSIFICATION
THE EARLY APPROACHES
Aristotle classified animals in Linnaeus gave 2 kingdom Aristotle was first to give scient
groups like enemia (having red classification i.e. plantae (bacteria, classification by classifying pla
BGA, Fungi, mosses, ferns,
blood) & anemia (the one not into tree, herbs, and shrubs (ba
gymnosperms, angiosperms)
having red blood). on morphological characters
& animals on basis of presence of
cell wall. and animals into anaima & ena
ISSUES IN THE EARLY APPROACHES BASIS
• It brought together prokaryotic bacteria & blue
• C
green algae (BGA).
• Unicellular (eg-Chalamydomonas) & multicellular • Th
(eg- Spirogyra) were placed together.
• M
• Organisms with different cell wall were placed together
like fungi having chitinous cell wall was placed with
• Re
plants having cellulosic cell wall. • Ph
• No differentiation between mode of nutrition i.e.,
heterotrophic fungi were placed with autotrophic plants.
KINGDOM MONERA
INTRODUCTION ARCHAEBACTERIA EUBACTERIA
They live in all type of habitat, even the (PRIMITIVE/ANCIENT)
extreme ones. Characterised by presence of rigid
