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Showing posts with the label whittaker's classification of life forms

Monera (bacteria)

MONERA: BACTERIA Characteristics These are the oldest life forms  prokaryotes: no defined cell organelles  or nucleus They are unicellular Some are autotrophic, while others are heterotrophic Autotrophic: prepare their own food - photosynthetic and chemosynthetic Heterotrophic: they depend on others for their food.  Bacteria Appear in variety of shapes and sizes Inhabit soil, water, radioactive waste & the  deep portions of the earth's crusts, deep oceans, hot springs, snow, deserts. Live in plant /animal bodies  It shows symbiosis: a relationship of mutual  benefit between two organism. There are four types of bacteria based on shapes :- coccus(spherical), Bacillus(cylindrical), Vibrium(comma shaped), spirrillum(spiral) Some bacteriae:- Archaebacteria Eubacteria Mycoplasma Cynobacteria E.coli Archaebacteria These are ancient bacteria found on earth They have a rigid cell wall Habitat:-extreme habitats, High sal...