The Living World
Madhya Pradesh Board · Class 11 · Biology
Quick revision notes for The Living World — Madhya Pradesh Board Class 11 Biology. Key concepts, formulas, and definitions for last-minute revision.
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Key Topics to Revise
Diversity in the Living World
- Living organisms occur in a huge variety of forms and habitats.
- Each different kind of plant, animal, or organism is a species.
- The number of known and described species ranges between 1.7 and 1.8 million.
Nomenclature and Binomial Nomenclature
- Nomenclature is the standardisation of naming living organisms.
- Scientific naming gives each organism only one universal name.
- Plants are named under ICBN, and animals under ICZN.
Classification and Taxonomy
- Classification groups organisms into convenient categories based on observable characters.
- Taxa are the categories used in classification.
- Taxonomic hierarchy is the ordered arrangement of categories from species to kingdom.
Taxonomic Categories: Species to Kingdom
- Species is the lowest taxonomic category for both plant and animal kingdoms.
- Genus is a group of related species with more characters in common than species of other genera.
- Family is a group of related genera with fewer similarities than genus.
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