Write the adaptation in aquatic plants due to which

(a) Submerged leaves can bend in the flowing water.

(b) Leaves can float on the surface of water.

How are cactus adapted to survive in deserts?

Explain, why speed is important for survival in the grasslands for animals that live there. (Hint: There are few trees or places for animals to hide in grasslands habitats.)

Fill up the blanks:

a. The presence of specific features, which enable a plant or an animal to live in a particular habitat, is called ____.

b. The habitats of the plants and animals that live on land are called _____ habitat.

c. The habitats of plants and animals that live on water are called _____.

d. Soil, water and air are the ___ factors of a habitat.

e. Changes in our surroundings that make us respond to them, are called _____.

What is a habitat?

Write the adaptation in aquatic plants due to which

(a) Submerged leaves can bend in the flowing water.

(b) Leaves can float on the surface of water.

Using the following words, write the habitat of each animal given in Fig. 9.1 (a to d).

Grassland, Mountain, Desert, Pond, River

If you happen to go to a desert, what changes do you expect to observe in the urine you excrete? You would

(i) Excrete small amount of urine.

(ii) Excrete large amount of urine.

(iii) Excrete concentrated urine.

(iv) Excrete very dilute urine.

Which of the above would hold true?

Choose the set that represents only the biotic components of a habitat.

Some desert plants have very small leaves whereas some others have only spines. How does this benefit the plants?

Read the features of plants given below:

(a) Thick waxy stem

(b) Short roots

(c) Cone shaped plants

(d) Sloping branches

(e) Small or spine-like leaves

(f) Hollow stem

Choose the type of plant for every feature given in a, b, c, d, e and f from the list given below:

Aquatic plant, Desert plant, Mountainous plant