|
How do frogs breathe on land and in water?
|
|
0
|
3570
|
March 24, 2018
|
|
What happens to the air we breathe in, once it reaches the lungs?
|
|
0
|
3080
|
March 24, 2018
|
|
Write the difference in the composition of inhaled and exhaled air
|
|
0
|
1701
|
March 24, 2018
|
|
Explain the role of the diaphragm in the process of breathing
|
|
0
|
1506
|
March 24, 2018
|
|
Insects and leaves of a plant have pores through which they exchange gases with the atmosphere
|
|
0
|
3706
|
March 24, 2018
|
|
Whenever we feel drowsy or sleepy we start yawning
|
|
0
|
4433
|
March 24, 2018
|
|
On a very cold morning, Boojho and Paheli were talking with each other as they walked down to their school
|
|
0
|
7104
|
March 24, 2018
|
|
On an average, an adult human being at rest breathes 15-18 times per minute
|
|
0
|
2677
|
March 24, 2018
|
|
Which gas present in air is essential for aerobic respiration?
|
|
0
|
840
|
March 24, 2018
|
|
Describe the function of the heart
|
|
0
|
25256
|
March 24, 2018
|
|
Distinguish between the following. (a) Excretion and Transpiration
|
|
0
|
1758
|
March 24, 2018
|
|
Distinguish between the following.Arteries and Veins
|
|
0
|
2237
|
March 24, 2018
|
|
Draw a diagram of the human excretory system and label the various parts
|
|
0
|
1798
|
March 24, 2018
|
|
Give an experiment to show the upward movement of water in plants
|
|
0
|
3328
|
March 24, 2018
|
|
While learning to ride a bicycle Boojho lost his balance and fell
|
|
0
|
6872
|
March 24, 2018
|
|
Read the following terms given below
|
|
0
|
1017
|
March 24, 2018
|
|
How are oxygen and food circulated in Hydra?
|
|
0
|
943
|
March 24, 2018
|
|
What is the function of the circulatory system in humans?
|
|
0
|
537
|
March 24, 2018
|
|
Give reasons for the following statements
|
|
0
|
2305
|
March 24, 2018
|
|
List the functions of the blood. Ans. The following are the functions of the blood:
|
|
0
|
511
|
March 24, 2018
|
|
Why is blood needed by all the parts of a body?
|
|
0
|
1716
|
March 24, 2018
|
|
What are the components of blood?
|
|
0
|
12452
|
March 24, 2018
|
|
Does transpiration serve any useful function in the plants? Explain
|
|
0
|
1265
|
March 24, 2018
|
|
What are stomata? Give two functions of stomata
|
|
0
|
11467
|
March 24, 2018
|
|
What will happen if there are no platelets in the blood?
|
|
0
|
4283
|
March 24, 2018
|
|
Why is transport of materials necessary in a plant or in an animal? Explain
|
|
0
|
1350
|
March 24, 2018
|
|
Paheli noticed water being pulled up by a motor-pump to an overhead tank of a five-storeyed building
|
|
0
|
2911
|
March 24, 2018
|
|
Observe figure given below and answer the given questions:
|
|
0
|
1115
|
March 24, 2018
|
|
Name the process and the organ which helps in removing the following wastes from the body
|
|
0
|
4039
|
March 24, 2018
|
|
Boojho’s uncle was hospitalised and put on dialysis after a severe infection in both of his kidneys
|
|
0
|
1772
|
March 24, 2018
|