English Medium Class 9 - CBSE Question Bank Solutions for Science

Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.

What are the functions of the stomata?

Name the tissue that transports food in plants.

Identify the type of tissue in the bark of tree.

Identify the type of tissue in the vascular bundle.

Name the regions in which parenchyma tissue is present.

What is the role of epidermis in plants?

How does the cork act as a protective tissue?

Complete the following chart:

What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?

In which kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?

In the hierarchy of classification, which grouping will have the smallest number of organisms with a maximum of characteristics in common and which will have the largest number of organisms?

How would you choose between two characteristics to be used for developing a hierarchy in classification?

Explain the basis for grouping organisms into five kingdoms.

List any three reasons why you would think that you are sick and ought to see a doctor. If only one of these symptoms were present, would you still go to the doctor? Why or why not?

In which of the following case do you think the long-term effects on your health are likely to be most unpleasant?

• If you get jaundice,

• if you get lice,

• If you get acne.

Why?

What is the Differnece between speed and velocity ? 

Under what condition(s) is the magnitude of average velocity of an object equal to its average speed?

What does the odometer of an automobile measure?

What does the path of an object look like when it is in uniform motion?