English Medium इयत्ता ९ - CBSE Question Bank Solutions

Write true (T) or false (F)

The lining of blood vessels, lung alveoli and kidney tubules are all made up of epithelial tissue.

Write true (T) or false (F)

Epithelial cells have a lot of intercellular spaces.

Write true (T) or false (F)

Epithelial layer is permeable layer.

Write true (T) or false (F)

Epithelial layer does not allow regulation of materials between body and external environment.

Differentiate between sclerenchyma and parenchyma tissues. Draw well labelled diagram.

Describe the structure and function of different types of epithelial tissues. Draw diagram of each type of epithelial tissue.

Give reasons for

Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.

Give reasons for

Intercellular spaces are absent in sclerenchymatous tissues.

Which one is a true fish?

Differentiation in segmental fashion occurs in

Classify the following based on number of chambers in their heart.

Rohu, Scoliodon, Frog, Salamander, Flying lizard, King Cobra, Crocodile, Ostrich, Pigeon, Bat, Whale

Classify Rohu, Scolidon, Flying lizard, King Kobra, Frog, Salamander, Ostrich, Pigeon, Bat, Crocodile, and Whale into the cold-blooded/warm-blooded animals.

Give True (T) and False (F)

Non flowering plants are called Cryptogamae.

Give True (T) and False (F)

Seeds contain embryo

Differentiate between flying lizard and bird. Draw the diagram.

List out some common features in cat, rat, and bat.

Why do we keep both snake and turtle in the same class?

According to the third law of motion, action and reaction

Calculate the average density of the earth in terms of g, G and R

A cube of side 5 cm is immersed in water and then in a saturated salt solution. In which case will it experience a greater buoyant force. If each side of the cube is reduced to 4 cm and then immersed in water, what will be the effect on the buoyant force experienced by the cube as compared to the first case for water. Give a reason for each case.