Animal Classification
Maharashtra Board · Class 10 · Science
Complete topic list for Animal Classification in Maharashtra Board Class 10 Science. Key concepts, sub-topics, and what to focus on for board exams.
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Topics in Animal Classification
1. History and Need for Classification
- Aristotle was the first to perform animal classification.
- Aristotle used body size, habits, and habitats for grouping animals.
- His classification is called the Artificial method.
2. Traditional Classification: Non-chordates and Chordates
- Traditionally, the animal kingdom is divided into Non-chordates and Chordates based on the presence or absence of notochord.
- Non-chordates lack a rod-like notochord supporting the body.
- Non-chordates lack pharyngeal gill-slits.
3. Grades of Organization, Symmetry, Germ Layers, and Body Cavity
- In unicellular organisms, all life functions are performed by the same cell; this is called Protoplasmic grade of organization.
- If tissues are not formed in multicellular animals, the body organization is called Cellular grade organization.
- If cells form tissues, it is called Cell-tissue grade organization.
4. Major Non-chordate Phyla
- Phylum Porifera are sponges with the simplest body plan.
- Porifera show cellular grade organization.
- Porifera usually have asymmetrical body.
Key Concepts
Central concept: Animal classification is the formation of groups and sub-groups of animals based on similarities and differences.
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