Tissue is a group of similar kind of cells specialized to perform a particular function in the body. Therefore presence of tissues in a multicellular organism ensures:

Lysosome is a cytoplasmic organelle containingenzymesthat break down biological polymers. Lysosomes function as the digestive system of the cell. It is also called the suicide bag of the cell because:

While doing work and running, you move your organs like hands, legs, etc. Which among the following is correct?

If the displacement of an object is proportional to square of time, then the object moves with:

Suppose a boy is enjoying a ride on a marry-go-round which is moving with a constant speed of 10 m/s. It implies that the boy is:

Which of the following can sometimes be ‘zero’ for a moving body? i. Average velocity ii. Distance travelled iii. Average speed iv. Displacement

A car is travelling at a speed of 90 km/h. Brakes are applied so as to produce a uniform acceleration of – 0.5 m/s2. Find how far the car will go before it is brought to rest?

In a free fall the velocity of a stone is increasing equally ion equal intervals of time under the effect of gravitational force of the earth. Then what can you say about the motion of this stone? Whether the stone is having

The numerical ratio of displacement to distance for a moving object is:

A passenger in a moving train tosses a coin which falls behind him. Observing this statement what can you say about the motion of the train?

A man wearing a bullet-proof vest stands on roller skates. The total mass is 80 kg. A bullet of mass 20 g is fired at 400 m/s. It is stopped by the vest and falls to the ground. What is then the velocity of the man?