In This Post You can Download Notes of DAV BOARD CLASS 7 Science of Chapter 2 Nutrition in Living Organisms Animals and Man.
Content Of Chapter -2 Nutrition in LIVING ORGANISMS ANIMALS AND MAN
- Three main Steps in Animal Nutrition
- MODE Of Intake Of Food
- FOOD REQUIREMENT
- UTILISATION IN BODY
FOOD HABITS OF ANIMALS
- Animals like Cow and Deer eat only Plant Materials are known as Herbivores.
- Animals like lion and Tiger eat only other Animals are known as Carnivores
- Omnivores : Animals like Bear and Human beings eat both Animals and Plant Materials are known as Omnivores.
MODES OF NUTRITION
- SAPROTROPHIC NUTRITION : Mode in which an Organism Obtain their Nutrients From Dead , Decaying plants and Animals .for example: Most fungus and Bacteria.
- Parasitic Nutrition : In This Mode Organisms obtain their food from other living Organisms and also harm them. For example : ROUNDWORMS, Head louse, Tape worm
- Holozoic Nutrition :
PDF OF CHAPTER -2
NUTRITIONS IN HUMANS
Sequence of Steps for this Process:
- INGESTION
- DIGESTION
- ABSORPTION
- ASSIMILATION
- EGESTION
Teeth : Human have Four different types of teeth that perform different functions
- Incisors
- Canines
- Premolars
- Molars
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