Adaptations in Desert Organisms

Q.

Explain how the following are adapted to survive in their habitat:
Pine tree

Q.

Plants growing in hot and dry places are called_________

Q.

Name two animals found in desert habitats.

Q.

Write three characteristics of cactus to live in the desert.

Q. Some of the characteristic features of plants are given below:
(i) Plants lose very less water through transpiration.
(ii) Roots grow very deep into the soil.
(iii) Stems are coated with thick waxy layer.
(iv) Plants lose a lot of water through transpiration.

Which of the combination of characteristics mentioned above are the features shown by desert plants?

1. (ii) and (iii)
2. (iii) and (iv)
3. (ii) and (iv)
4. (i), (ii) and (iii)

Q. Which of the following help(s) prevent the loss of water from the body of desert animals?

1. Thin skin
2. Thick skin
3. Hard soles
4. Short legs

Q. The following are the characteristics of a plant.

• Needle-like leaves
• Fleshy stem
• Deep roots
• Thick waxy coating on the stem

Where can you possibly find this plant?

1. Grasslands
2. Cold mountains
3. Submerged in water
4. Deserts

Q.

Are succulents xerophytes?

Q.

Mention two adaptations of cacti for life in the desert. What are plants like cacti called? [3 MARKS]

Q.

Give reasons for the following statement:

Animals like rats and snakes stay in burrows deep in the sand.

Q. Which of the following characteristics of cactus allows it to survive in desert?

1. Presence of small needle like leaves.
2. Presence of fleshy stems.
3. Presence of thin and slender leaves.
4. Presence of thick waxy layer on the stems.

Q.

Although organisms die, their kind continues to live on earth. Which characteristic of living organisms makes this possible?

1. Respiration

2. Reproduction

3. Excretion

4. Movement

Q.

List a few differentiative features between the desert and sea regions.

Q. An animal lives in a dry and water scarce region. Which of the following characteristics would help it survive in such conditions?

1. Thick skin
2. Short and padded legs
3. Nostrils protected with skin
4. Thick and long eyelashes

Q. How can the plants like cactus and acacia live in deserts with scarce water?

Q.

The features and habits of animals and plants that help them to adapt to their surroundings is due to the process of ________________________________.

1. Rejuvenation

2. Adaptation

3. Evolution

4. Camouflage

Q.

Give one word for protection by blending with surroundings.

Q.

How do desert plants adapt to their surroundings? Explain with examples.

Q. Why do desert snakes burrow deep into the sand during the day?

Q. Give the adaptation of animals in the snowy region.

Q. Deserts are dry, hot habitats with very little water content in the soil. How do the desert plants manage their water requirements in such habitats?

1. Have broad leaves.
2. Deep penetrating roots.
3. Leaves modified into spines.
4. Waxy coating on the leaves.

Q.

Deer has ______ teeth to help him chew on plants.

Q. Why is the camel called the 'Ship of the desert'?

Q.

What is the function of thick lips in a camel.

Q.

Which of the life processes collectively constitute metabolism?

Q.

Name the parts of a camel that helps them do the functions mentioned below.

1. Stores fat

2. Prevents water loss

1. Flat legs and spines

2. Spines and Hump

3. Flat legs and Hump
4. Hump and thick skin

Q.

There are lots of air spaces in the stem of the cactus.

1. True
2. False

Q. Question 11
Give one example of an animal that can live both in water and on land.

Q. increases the chances of survival in an organism.

1. Adaptation
2. Hunting
3. Precipitation

Q. How can the plants like cactus and acacia live in deserts with scarce water?