Question

1. What is meant by the term habitat? Name the three main habitats in our biosphere.
3. Write two characteristics which the camel has adapted to survive in deserts
2. What is hibernation? Give one example,
4. What are the common features found in mountain animals?
5. What is meant by excretion ? Name two products excreted by trees.​

Answer 1

Answer:

Question 1:

If you study the relationship between living things and their surroundings, which subject are you studying?

ANSWER:

The relationship between living things and their surroundings is studied under ecology.

Question 2:

The natural environment consists of the air, water, soil, sunlight and temperature in a place. Do you agree? Give reasons.

ANSWER:

No, the natural environment does not only consist of water, soil, temperature, air and sunlight in a place. This is because a natural environment constitute abiotic and biotic components of the environment. Soil, water, air, temperature and sunlight only represent the abiotic components of the environment.

Question 3:

In the word 'autotroph', 'troph' means food. What does 'auto mean? What kind of living organisms is this name given to? Why?

ANSWER:

'Auto' in the word 'autotroph' means self. The name autotroph is given to plants. This is because plants have the ability to prepare their own food by the process of photosynthesis.

Question 4:

Name five abiotic components of the environment.

ANSWER:

The abiotic components of an environment include non-living component present in an environment. Some of the abiotic components of the environment include water, air, soil, sunlight and temperature.

Question 5:

Is the burrow of a rabbit its habitat?

ANSWER:

No, the burrow of a rabbit is not its habitat. This is because a habitat must provide all the things required for the survival of an organism. However, a burrow only provides shelter and not things such as food that are essential for life.

Explanation:

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Answer 2

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1.What is meant by the term habitat? Name the three main habitats in our biosphere.

➝A place where the conditions for the existence of a living organism are present and where it can survive, breed and flourish.

The three main habitats in our biosphere are

• air
• water
• Land

2.What is hibernation? Give one example.

➝Hibernation is a deep sleep that helps animals to save energy and survive the winter without rating much

For ex - A dormouse go to sleep throughout the winter.

3. Write two characteristics which the camel has adapted to survive in deserts.

➝A camel has several adaptions to help it survive in a desert.

✷It has a hump where fat is stored. This provides it with food in times of shortage. It can, therefore,live without food for several days.

✷It can drink a very large quantity of water at a time,and then stay without water for a long time.

✷It excretes Very little water in the form of urine. Besides, its dung is dry and it does not sweat. It thus loses very little water from its body.

4.What are the common features found in mountain animals?

➝The Mountain Animals have thick fur to protect themselves from the extreme cold environment,and

strong hooves to climb the slopes of hills.

5.What is meant by excretion ? Name two products excreted by trees.

➝The process in which the metabolic waste is eliminated from an organism is called excretion.

The two products excreted by trees are:

• Oxygen (through photosynthesis)
• Water (through Transpiration)

________________

Types Of Habitat:

1) Aquatic

2) Terrestrial

Aquatic Habitat:

• Marine
• Freshwater
• Coastal

Terrestrial habitats:

• Desert
• Grassland
• Rainforest
• Tundra (Polar)