TOPIC 5 OF 46

Animals, Habitats and Conservation

🎓 Class 6 Science CBSE Theory Ch 2 — Diversity in the Living World ⏱ ~14 min
🌐 Language: [gtranslate]

This MCQ module is based on: Animals, Habitats and Conservation

[myaischool_lt_science_assessment grade_level="class_6" science_domain="biology" difficulty="basic"]

2.2.2 How to Group Animals?

Just like plants, animals too are significantly different from one another. How can we group such a wide variety of animals? In Activity 2.3, you already set some bases for grouping animals. Let us explore a few of these in more detail.

Fig. 2.7: Diversity in Animals L4 Analyse

Cow Bird Butterfly Ant Snake Animals live in diverse habitats and move in different ways
Fig. 2.7: Diversity in animals — different animals live in different habitats and move using different body parts

Table 2.5: Movements in Animals and Their Body Parts

S. No.AnimalType of MovementBody Parts Used
1.AntWalkLegs (six)
2.GoatWalk and jumpLegs (four)
3.PigeonWalk and flyLegs and wings
4.HouseflyWalk and flyLegs and wings
5.FishSwimFins
6.SnakeCrawl / SlitherWhole body (no limbs)

Different animals use different body parts for movement — wings for flying, legs for walking and jumping, fins for swimming. This is yet another way to group animals. Additionally, many animals differ from each other in shape, size, structure, colour, and other features. Like plants, grouping of animals is important for understanding their diversity.

🌺
Janaki Ammal (1897–1984)
Indian Botanist — "The Birdman of India's counterpart in botany"
Janaki Ammal was an Indian botanist dedicated to environmental work and documenting India's rich plant biodiversity. She played a key role in the 'Save Silent Valley' movement. As the head of the Botanical Survey of India, she initiated programmes to document the plant diversity of India.
🐦
Salim Ali (1896–1987)
Indian Ornithologist — "The Birdman of India"
Salim Ali travelled across India to observe diversity in birds. He prepared a list of birds, documented their travel routes and habitats. He recorded regions with high diversity of birds and took measures to conserve these regions. Keoladeo National Park in Bharatpur, Rajasthan, is one example of a region he helped preserve. He wrote a landmark series of 10 books on birds of the Indian Subcontinent and was awarded Padma Vibhushan in 1976.

2.3 Plants and Animals in Different Surroundings

You might have observed during nature walks that different animals live in different surroundings. Fishes live in water and have streamlined bodies and fins. Goats live in grassy areas and move with the help of legs. The sizes and shapes of animals also differ from one another.

🧪 Activity 2.10 — Let Us Compare and Analyse L4 Analyse
🤔 Predict first: Do you think a cactus and a deodar tree need different surroundings to survive? Why?
  • Look at Table 2.6. List the names of plants and animals you or your classmates have observed in the regions given in the table or already know about.
  • What are your observations regarding plants and animals found in various regions?
Key observation: The plants and animals found in one kind of region are different from those found in another kind of region. A cactus thrives in the hot, dry desert but would not survive in cold mountains. A deodar tree grows well in cold mountainous regions but not in deserts. Each region has plants and animals adapted to its specific conditions.

Table 2.6: Animals and Plants Found in Different Surroundings

S. No.In the DesertOn MountainsIn the OceanIn the ForestAny Other Region
1.CamelDeodar treeFishLion
2.CactusSnow leopardWhaleDeer
3.Add moreAdd moreAdd moreAdd more

🔍 Explore: How Plants and Animals Adapt L4 Analyse

🏜️ Desert Adaptations:
  • Cactus: Thick fleshy stems store water. Leaves are modified into spines to reduce water loss. Roots spread wide to collect rainwater.
  • Camel (Hot desert): Long legs with wide, padded hooves to walk on hot sand without sinking. Stores food in humps. Can survive many days without drinking water. Does not sweat easily, conserving water.
  • Camel (Cold desert, Ladakh): Shorter legs, shorter height, thicker fur to withstand cold temperatures. Double-humped (Bactrian camel).
🏔️ Mountain Adaptations:
  • Deodar tree: Conical shape and sloping branches help snow slide off easily. Needle-like leaves reduce water loss in cold, dry winds.
  • Rhododendron: Grows at different heights — taller at lower altitudes, shorter at higher altitudes. Has smaller leaves at higher elevations to survive harsh winds.
  • Mountain goat: Sure-footed hooves for rocky terrain. Thick fur for insulation against cold.
🌊 Ocean Adaptations:
  • Fish: Streamlined body shape reduces water resistance. Fins for swimming and balancing. Gills to breathe dissolved oxygen from water.
  • Whale: Thick layer of blubber (fat) for insulation in cold ocean water. Flippers and a powerful tail for swimming. Breathes air through a blowhole on top of its head.
  • Seaweed: Flexible stems to sway with ocean currents without breaking.
🌳 Forest Adaptations:
  • Lion: Powerful legs and claws for hunting. Tawny colour blends with dry grasslands.
  • Monkey: Long limbs and grasping hands/feet for climbing and jumping between branches. Long tail for balance.
  • Trees: Tall trunks to reach sunlight above the canopy. Broad leaves to capture maximum light.
📖 Key Terms:
🔄 Adaptation — Special features that enable a plant or animal to survive in a particular region. For example, the shape of a deodar tree and the height of a rhododendron are adaptations.
🏠 Habitat — The place where plants and animals live. For example, the habitat of a sea turtle is the ocean; the habitat of a camel is the hot or cold desert.
🌍 Terrestrial habitats — Land-based habitats: forests, deserts, grasslands, mountains.
💧 Aquatic habitats — Water-based habitats: ponds, lakes, rivers, and oceans.
🐸 Amphibians — Animals like frogs that can live in both water and on land.

Protecting Our Biodiversity

What would happen if the habitat of a plant or an animal is damaged? What would happen if a goat does not get grass to eat? Check with your parents, grandparents, and neighbours to know about the plants, birds, insects, or any other animal they used to see frequently in their childhood but do not see as often now. The damage to habitats results in loss of homes, food, and other resources for plants and animals — this leads to the loss of biodiversity.

🐯 Conservation Efforts in India:
The populations of Bengal Tiger, Cheetah, and Great Indian Bustard have declined due to loss of natural habitats caused by human activities. The Government of India has initiated several projects:
🐅 Project Tiger (1973) — to protect the declining population of the Bengal Tiger
🐆 Cheetah Reintroduction Project (2022) — to restore the population of the Cheetah
🦅 Habitats of the Great Indian Bustard have been declared Protected Areas in Gujarat, Rajasthan, and Maharashtra
🌳 Traditionally Protected Forests: Sacred Groves
Sacred groves are undisturbed patches of forests protected by local communities. Their sizes vary from quite small to very large. They are found all over India and are home to different kinds of plants and animals, including numerous medicinal plants. No one is allowed to harm any animals or cut trees in these groves. This way, sacred groves are a community-protected treasure of biodiversity. Find out about the sacred groves in your region!
🌍 Key Message: We must protect biodiversity to ensure our planet is full of life, helping plants and animals to survive and thrive. Every species has a role to play in maintaining the balance of nature.

📋 Competency-Based Questions

Arjun visited the desert of Rajasthan and saw camels with long legs and wide hooves. Later, he visited Ladakh and noticed the camels there looked different — shorter with thicker fur and two humps. He wondered why camels in different deserts look so different.

Q1. L3 Apply Why do hot-desert camels have long legs and wide padded hooves?

  • A. To help them run faster than lions
  • B. To walk on hot sand without sinking or burning
  • C. To swim across desert rivers
  • D. To climb mountains
Answer: B. Long legs keep the camel's body away from the hot sand surface, and wide padded hooves distribute their weight over a larger area so they don't sink into the loose sand. These are adaptations for desert survival.

Q2. L1 Remember Fill in the blank: The special features that enable a plant or animal to survive in a particular region are called __________.

Answer: adaptations

Q3. L4 Analyse Compare a fish and a cow based on their habitat and body parts used for movement. How are they adapted differently? (Short Answer — 2 marks)

Answer: A fish lives in an aquatic habitat (water). It has a streamlined body and fins for swimming, and gills for breathing in water. A cow lives in a terrestrial habitat (land). It has four strong legs for walking and lungs for breathing air. Each is adapted to its specific habitat — a fish cannot survive on land, and a cow cannot survive underwater.

Q4. L5 Evaluate "If forests are cut down, only the animals living in the forest will be affected, not the humans." Do you agree or disagree? Give reasons. (3 marks)

Answer: I strongly disagree. Deforestation affects humans too: (1) Trees release oxygen and absorb carbon dioxide — cutting them increases air pollution and contributes to climate change. (2) Forests prevent floods and soil erosion — without them, nearby communities face flooding and landslides. (3) Forests are home to medicinal plants and provide resources like timber and food. (4) Loss of biodiversity disrupts food chains that ultimately affect human food sources too.

Q5. L6 Create HOT: You are the environment minister. Design a 3-point action plan to protect the biodiversity of a forest near your city that is being destroyed for construction. (3 marks)

Hint: Think about: (1) legal protection (declaring it a protected area), (2) community involvement (making locals guardians like sacred groves), (3) alternatives for the construction project (using already-cleared land instead). Consider both short-term and long-term actions.

🔗 Assertion–Reason Questions

Assertion (A): Cactus plants have leaves modified into spines.

Reason (R): This adaptation reduces water loss through evaporation in hot, dry desert conditions.

  • A. Both A and R are true, and R is the correct explanation of A.
  • B. Both A and R are true, but R is NOT the correct explanation of A.
  • C. A is true, but R is false.
  • D. A is false, but R is true.
Answer: A. Both are true. Cactus spines are indeed modified leaves, and this modification is specifically an adaptation to conserve water in arid desert environments where water is scarce.

Assertion (A): Fish can survive on land for a long time.

Reason (R): Fish have gills that can extract oxygen only from water, not from air.

  • A. Both A and R are true, and R is the correct explanation of A.
  • B. Both A and R are true, but R is NOT the correct explanation of A.
  • C. A is true, but R is false.
  • D. A is false, but R is true.
Answer: D. The Assertion is false — fish cannot survive on land for a long time. The Reason is true — fish have gills that extract dissolved oxygen from water; they cannot breathe air efficiently. This is precisely why fish die when taken out of water.

Assertion (A): Sacred groves help protect biodiversity.

Reason (R): In sacred groves, local communities do not allow anyone to harm animals or cut trees.

  • A. Both A and R are true, and R is the correct explanation of A.
  • B. Both A and R are true, but R is NOT the correct explanation of A.
  • C. A is true, but R is false.
  • D. A is false, but R is true.
Answer: A. Both are true. Sacred groves protect biodiversity (Assertion) precisely because local communities enforce rules against harming plants and animals in these areas (Reason). This community-based protection preserves diverse species and medicinal plants.

💡 Did You Know?

Frequently Asked Questions — Animals, Habitats and Conservation

What does the topic 'Animals, Habitats and Conservation' cover in Class 6 Science?

The topic 'Animals, Habitats and Conservation' is part of NCERT Class 6 Science Chapter 2 — Diversity in the Living World. It covers the key ideas of animals, habitats, terrestrial, aquatic, aerial, adaptation, conservation, biodiversity, explained through everyday examples, labelled diagrams and hands-on activities from the NCERT Curiosity textbook. Class 6 students learn simple definitions, see why each idea matters in daily life, and try short experiments and observations. The lesson uses easy language, colourful pictures and small questions so that young learners build a strong base for higher classes and for competency-based questions in CBSE school tests.

Why is 'Animals, Habitats and Conservation' important for Class 6 NCERT Science?

'Animals, Habitats and Conservation' is important because it builds the first ideas of science that Class 6 students will use again in Class 7, 8 and beyond. NCERT Chapter 2 — Diversity in the Living World — introduces animals and connects it to things children already see at home, at school and in nature. Learning this topic helps students ask better questions, understand simple news about science, and score well in CBSE tests that use competency-based questions. The chapter also supports NEP 2020 by encouraging curiosity, observation and learning by doing rather than only reading and memorising.

What are the key ideas students should remember from Animals, Habitats and Conservation?

The key ideas in 'Animals, Habitats and Conservation' for Class 6 Science are: animals, habitats, terrestrial, aquatic, aerial, adaptation, conservation, biodiversity. Students should be able to say each term in their own words, give one or two easy examples from daily life, and draw a small labelled diagram where needed. A good way to revise is to make flashcards, write a short note in the science notebook, and solve the NCERT in-text and exercise questions of Chapter 2. Linking every idea to something seen at home or school — in the kitchen, garden, playground or sky — makes these ideas easy to remember for unit tests and the annual CBSE examination.

How is Animals, Habitats and Conservation taught using activities in NCERT Curiosity Class 6?

NCERT Curiosity Class 6 Science teaches 'Animals, Habitats and Conservation' through an inquiry-based approach using Predict–Observe–Explain activities. Students first make a guess, then try a small experiment with safe, easily available materials, and finally explain what happened and why. This matches the NEP 2020 focus on learning by doing. For Chapter 2 — Diversity in the Living World — the textbook has hands-on tasks, labelled pictures and thinking questions built for Bloom's Taxonomy Levels 1 to 6. Teachers use these activities, along with competency-based questions (CBQs) and assertion–reason items, to check real understanding instead of only rote learning.

What real-life examples of animals can Class 6 students see at home?

Class 6 students can see animals at home in many simple ways linked to 'Animals, Habitats and Conservation'. Kitchens, school bags, playgrounds, the garden and the night sky are full of examples that match NCERT Chapter 2 — Diversity in the Living World. For example, students can look at food labels, watch changes while cooking, try safe activities with water, magnets or shadows, and observe the Sun, Moon and weather each day. Keeping a small science diary — with the date, what was observed and a quick drawing — turns daily life into a mini science lab. These real-life links make concepts easy to remember and help in answering competency-based questions in CBSE Class 6 Science.

How does 'Animals, Habitats and Conservation' connect to other chapters of Class 6 Science?

'Animals, Habitats and Conservation' connects to many other chapters in NCERT Class 6 Science Curiosity. The ideas of animals come back when students study related topics like diversity in the living world, food, magnets, measurement, materials, temperature, water, separation, habitats, natural resources and the solar system. For example, what students learn here helps them build mental pictures for later chapters and for Class 7 and Class 8 Science. Teachers often ask cross-chapter questions in CBSE exams to check if students can use what they learned in Chapter 2 — Diversity in the Living World — in new situations. This linked approach matches the NEP 2020 and NCF 2023 focus on holistic, competency-based learning.

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