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Online Notes of CBSE Class 10 Science - Nutrition in animals

Online Notes of CBSE Class 10 Science - Nutrition in animals

Takshila Learning always takes care to design subject matter in such a way that it is always facile for Class 10 students to understand the concepts and learn how to endeavor questions in CBSE Class 10 Science exam.
In this article, we have discussed steps in the process of nutrition in animals.

All animals can be divided into three groups on the basis of their food habits. These are:
  1. Herbivores
  2. Carnivores
  3. Omnivores
Different steps in the process of nutrition in animals
There are five steps in the process of nutrition in animals.
  1. Ingestion: the process of taking food, drink, or another substance into the body by absorbing it.
  2. Digestion:  the process in which the food containing large, insoluble molecules is broken down into small water-soluble molecules is called digestion.
  3. Absorption:  this is the process by which the digested food passes through the intestinal wall into the bloodstream is called absorption.
  4. Assimilation: The process in which the absorbed food is taken in by the body cells and used for energy, growth, and repair is called assimilation.
  5. Egestion: The process in which the undigested food is removed from the body is called egestion.
Nutrition in Simple Animals:
Amoeba and paramecium are two very simple unicellular animals. In unicellular animals, all the processes of nutrition are performed by the single cell.
Nutrition in Amoeba:
  • Amoeba eats tiny plants and animals as food which floats in water in which it lives.
  • The mode of nutrition in Amoeba is holozoic.
  • The process of obtaining food by Amoeba is called phagocytosis.


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