Classification of Living Organisms
NIOS · Class 10 · Science & Tech
Complete topic list for Classification of Living Organisms in NIOS Class 10 Science & Tech. Key concepts, sub-topics, and what to focus on for board exams.
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See them allTopics in Classification of Living Organisms
1. Biodiversity and Its Levels
- Earth is the only planet in our solar system of eight planets on which life exists.
- Every organism begins life as a single cell.
- Biodiversity means the enormous variety of organisms.
2. Classification, Taxonomy, and Hierarchy
- Classification is grouping organisms according to similarities and differences.
- Classification is also termed systematics, and the science of classification is termed taxonomy.
- Classification shows evolutionary relationships among organisms.
3. Three Domains of Life
- All organisms are classified into three major domains.
- Archaebacteria are thermophilic or heat loving bacteria that live in high temperature vents.
- Certain bacteria live in oceanic vents at temperatures as high as 80°C to 110°C.
4. Five Kingdom Classification
- Whittaker in 1969 suggested that bacteria should not be in plant kingdom and protozoa not in animal kingdom.
- Whittaker gave the five kingdom classification.
- The five kingdoms are Monera, Protoctista or Protista, Fungi, Plantae, and Animalia.
Key Concepts
Central concept: Classification of living organisms based on biodiversity, domains, kingdoms, hierarchy, and scientific naming
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