ECOSYSTEM 1. AN ECOSYSTEM IS A FUNCTIONAL UNIT OF NATURE where living organisms interact among themselves and also with the surrounding physical environment. 2. ENTIRE BIOSPHERE A global ecosystem, as a composite of all local ecosystems on Earth. 3. GLOBAL ECOSYSTEM two categories: Aquatic and Terrestrial ecosystem. 4. Forest, grassland and…
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THE LIVING WORLD| characteristics of living organism| GROWTH (TWIN CHARACTER)|REPRODUCTION ||METABOLISM |REGULATION OF METABOLIC REACTION| CONCIOUSNESS | TAXONOMIC HIERARCHY
1. Systematic and detail description of life forms o Identification, nomenclature and classification. 2. ERNST MAYR ‘The Darwin of the20th century’; Pioneered the currently accepted definition of a biological species. 3. CHARACTERSTICS OF A LIVING ORGANISM …
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PNEUMONIA| Symptoms of pneumonia|causes of pneumonia|pathogen of pneumonia| common cold
PNEUMONIA: • Pathogen à Ø Streptococcus pneumoniae Bacteria Ø Haemophilus influenzae bacteria. • Infected organ: Alveoli of lungs. • Alveoli of lungs get…
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ANIMAL KINGDOM
1. Levels of Organisation All members of animalia are multicellular but all of them do not exhibit the same pattern of organisation of cells. 2. A complete digestive system has two openings, mouth and anus. ●Platyhelminthes has only a single opening to the outside of…
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BIOLOGICAL CLASSIFICATION
1. ARISTOTLE: ●First scientific approach to classify the organisms ● Used simple morphological characters ● Classify the plant into herb, shrub & tree. ● Classified animals on the basis of presence / absence of Red blood 2. LINNEAUS: ● TWO KINGDOM CLASSIFICATION –>Plantae and Animalia. ● This system did not clear the…
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BIODIVERSITY
BIODIVERSITY Sum total of diversity that exists at all levels of biological organisation. o Levels of biodiversity –> Genetic, Species and Ecosystem levels 2. GENETIC DIVERSITY: o A single species might show high diversity at the genetic level over its distributional range. o India has more than 50,000 genetically different…
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