TOPIC: LIVING THINGS DEPEND UPON EACH OTHER

GIVE ANSWERS TO FOLLOWING:

1: On the basis of eating habits, how are living things classified? 
Ans.  Living things are classified as:
a) Producer                                                                                                                   b) Consumer

2:  Why are plants called “producers’?

Ans. Plants are called producers because they can produce their own food by photosynthesis.

3:  What is meant by photosynthesis?

Ans. Photosynthesis is a process by which plants can make their own food using carbon dioxide, water and sun light in the presence of chlorophyll.

4: What materials do plants need for photosynthesis?

Ans. Plants need;

 ♣ Carbon dioxide (from air) 

♣ Water (from soil)

♣Energy (from sunlight)

5: Is process of photosynthesis possible, without chlorophyll? Justify.

Ans.  Chlorophyll captures sun light to combine carbon dioxide and water during photosynthesis. If there is no chlorophyll photosynthesis is not possible.

6:  Why are leaves the best location for photosynthesis? 

Ans. Leaves are the best location for photosynthesis for the following reasons;

♣ Leaves are broad and flat to absorb maximum sun light.

♣ Leaves are thin to allow light to go to inner cells.

♣ Leaves have a network of veins to conduct water, mineral salts from roots to leaves while prepared food away from them.

7: What are consumers?

Ans. Consumers consume the food prepared by producers, they cannot produce food themselves. For example human, animals, etc.

8: How do consumers consume food prepared by producers?

Ans. Consumers consume this prepared food usually in two ways;

♣ Direct

♣ Indirect

9: What is being shown in the following?

10: What do we call the path way along which energy flow in a habitat? Show your answer with a simple example.

Ans. The path along which energy flows in a habitat is called Food Chain.

11: From where do all food chains start?

Ans. All of the food chains start from producers (plants).

12: What captures the sun energy first in a food chain?

Ans. Green plants capture the sun energy first.

13: Put in proper order?