EXERCISES
A. Answer in Detail
1. Why do we need food?
2. Do all living beings need the same kind of food? Give reasons.
3. How are animals grouped on the basis of the food eaten by them?
4. What food items do we obtain from plants? Give examples.
5. Differentiate between herbivores, carnivores and omnivores.
Answers
Explanation:
1.
All living things need food to stay alive, grow, and get energy.
2.
No, all living beings do not need the same kind of food. As we know that different living organisms have different eating habits according to their structures, requirements, habitats, etc.Some animals eat only plant products called as herbivores. Some animals eat only other animals. They are called carnivores. Some other animals eat both plants and animals called omnivores.
3.
Animals can be put into groups based on the types of food they eat. Some animals called carnivores only eat meat. Others are called 'herbivores'. ... Animals that eat meat and plants are called 'omnivores'.
4.
food item obtained from plants are :-
Vegetables. Vegetables are obtained from the plants. ...
Roots. Radish, turnip, carrot, beetroot are some of the roots that are eaten as vegetables.
Stem. Potato and ginger are the stems that are eaten as vegetables.
Leaves. Spinach, cabbage, lettuce are the leaves eaten as vegetables.
Flowers. ...
Fruits. ...
Cereals. ...
Tea, Coffee.
5.
Herbivores
Animals that eat only plants or plant products
Examples- cow, horse, goat, etc.
carnivorous
Animals that eat other animals for meat or flesh
Examples- lion, tiger, lizzard, etc.
omnivorous
Animals that eat both plants and animals. Examples- dog, cat, crow, etc.
Answer:
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