Chapter 5 of 12
Chapter 5: Plants and Animals Live Together
Symbiosis, Food Chains, Animal Habitats, Pollination, and Ecological Interdependence | CBSE Session 2026–27
Core Pedagogical Competencies & Concepts
- Ecological interdependence: How plants provide oxygen, food, and shelter to animals.
- How animals assist plants: Pollination by bees and butterflies, seed dispersal by birds.
- Simple food chains: Grass (producer) → Grasshopper (herbivore) → Frog → Snake → Eagle.
- Respecting natural habitats: Avoiding nest destruction and protecting micro-habitats in school gardens.
All Textbook Exercises & In-Text Tasks (17 Questions)
100% Complete Ingestion
Q1
Mutual Interdependence
Explain two ways in which plants help animals, and two ways in which animals help plants.
[3 Marks]
✅ Step-by-Step Solution & Working
Ways Plants Help Animals:
1. Oxygen & Nourishment: Green plants release oxygen during the daytime for animals to breathe and produce fruits, seeds, and nectar for food.
2. Shelter & Protection: Trees provide nesting places for birds, hollows for squirrels, and shade for grazing animals.
Ways Animals Help Plants:
1. Pollination: Insects like honeybees and butterflies carry pollen grains from flower to flower, allowing flowers to develop into fruits.
2. Seed Dispersal: Birds and monkeys eat fruits and drop seeds in distant places through their droppings, helping new trees germinate.
1. Oxygen & Nourishment: Green plants release oxygen during the daytime for animals to breathe and produce fruits, seeds, and nectar for food.
2. Shelter & Protection: Trees provide nesting places for birds, hollows for squirrels, and shade for grazing animals.
Ways Animals Help Plants:
1. Pollination: Insects like honeybees and butterflies carry pollen grains from flower to flower, allowing flowers to develop into fruits.
2. Seed Dispersal: Birds and monkeys eat fruits and drop seeds in distant places through their droppings, helping new trees germinate.
CBSE Step-by-Step Marking Scheme
Two clear contributions of plants to animal survival
1.5 Marks
Two vital contributions of animals to plant reproduction/dispersal
1.5 Marks
Q2
Food Chains & Producers
What is a food chain? Construct a simple 4-step land food chain starting with grass.
[3 Marks]
✅ Step-by-Step Solution & Working
A food chain is a sequential feeding relationship that demonstrates who eats whom in nature to transfer energy from producers to consumers.
4-Step Food Chain:
Grass (Producer) ➔ Grasshopper (Herbivore) ➔ Frog (Carnivore) ➔ Snake (Apex Predator).
• Grass captures solar energy.
• The grasshopper feeds on green leaves.
• The frog preys on the grasshopper.
• The snake consumes the frog.
4-Step Food Chain:
Grass (Producer) ➔ Grasshopper (Herbivore) ➔ Frog (Carnivore) ➔ Snake (Apex Predator).
• Grass captures solar energy.
• The grasshopper feeds on green leaves.
• The frog preys on the grasshopper.
• The snake consumes the frog.
CBSE Step-by-Step Marking Scheme
Definition of food chain and energy flow
1.5 Marks
Correct 4-organism progression with appropriate ecological terms
1.5 Marks
Q3
Soil Ecosystems
Why are earthworms honored as 'the farmer's best friends'?
[2 Marks]
✅ Step-by-Step Solution & Working
Earthworms burrow through underground soil, making it loose and aerated so plant roots can breathe and absorb rainwater easily. Furthermore, their waste castings enrich the soil with rich natural humus and organic nutrients.
CBSE Step-by-Step Marking Scheme
Soil aeration through burrowing
1 Mark
Nutrient enhancement through vermicompost/castings
1 Mark
Q4
Interdependence • Plants and Animals
How do plants and animals depend upon each other for survival? Give two clear examples.
[3 Marks]
✅ Step-by-Step Solution & Working
Ecological Interdependence:
1. Oxygen and Carbon Dioxide Cycle: Plants produce oxygen during daytime, which animals breathe to stay alive. Animals breathe out carbon dioxide, which plants use to prepare food.
2. Food and Pollination: Animals eat plant fruits, nectar, and leaves. In return, bees and butterflies pollinate flowers so new fruits and seeds can grow.
1. Oxygen and Carbon Dioxide Cycle: Plants produce oxygen during daytime, which animals breathe to stay alive. Animals breathe out carbon dioxide, which plants use to prepare food.
2. Food and Pollination: Animals eat plant fruits, nectar, and leaves. In return, bees and butterflies pollinate flowers so new fruits and seeds can grow.
CBSE Step-by-Step Marking Scheme
Oxygen-carbon dioxide exchange explained
1.5 M
Food and pollination mutual benefit explained
1.5 M
Q5
Animal Shelters • Natural Habitats
Classify the following animals according to their natural shelters:
Parrot, Earthworm, Rabbit, Fish, Monkey.
[Tree hollows/branches, Underground burrows, Moist soil, Water/Pond]
[3 Marks]
Parrot, Earthworm, Rabbit, Fish, Monkey.
[Tree hollows/branches, Underground burrows, Moist soil, Water/Pond]
✅ Step-by-Step Solution & Working
Shelter Classification:
• Parrot: Tree hollows / tree branches
• Monkey: Tree branches and canopy
• Earthworm: Moist underground soil
• Rabbit: Underground burrows
• Fish: Water (pond/river/lake)
• Parrot: Tree hollows / tree branches
• Monkey: Tree branches and canopy
• Earthworm: Moist underground soil
• Rabbit: Underground burrows
• Fish: Water (pond/river/lake)
CBSE Step-by-Step Marking Scheme
Accurate natural shelter matches for all 5 animals
3.0 M
Q6
Hands-on Project • Making a Bird Feeder
How can you make a bird feeder using a recycled plastic bottle or carton?
[3 Marks]
✅ Step-by-Step Solution & Working
Recycled Bird Feeder Steps:
1. Take a clean, empty plastic bottle or milk carton and cut two small feeding holes (about 3 cm wide) on opposite sides, 5 cm from the base.
2. Push an old wooden pencil or chopstick right through the bottle just beneath each hole to act as a perch for birds to sit on.
3. Fill the bottle with birdseeds (millets, sunflower seeds).
4. Tie a sturdy string around the bottle neck and hang it from a shady tree branch safely away from cats.
1. Take a clean, empty plastic bottle or milk carton and cut two small feeding holes (about 3 cm wide) on opposite sides, 5 cm from the base.
2. Push an old wooden pencil or chopstick right through the bottle just beneath each hole to act as a perch for birds to sit on.
3. Fill the bottle with birdseeds (millets, sunflower seeds).
4. Tie a sturdy string around the bottle neck and hang it from a shady tree branch safely away from cats.
CBSE Step-by-Step Marking Scheme
Cutting feeding ports and inserting perch
1.5 M
Filling seeds and hanging safely described
1.5 M
Q7
Animal Welfare • Stray Dogs Etiquette
What should you do if you encounter a stray dog while walking on the street? Write two safety guidelines.
[2 Marks]
✅ Step-by-Step Solution & Working
Safety Guidelines for Stray Dogs:
1. Walk calmly without running, screaming, or throwing stones, which may frighten the dog and provoke a bite.
2. Avoid staring directly into an unfamiliar dog's eyes or disturbing a mother dog nursing her puppies.
1. Walk calmly without running, screaming, or throwing stones, which may frighten the dog and provoke a bite.
2. Avoid staring directly into an unfamiliar dog's eyes or disturbing a mother dog nursing her puppies.
CBSE Step-by-Step Marking Scheme
Two sensible, non-provocative safety rules
2.0 M
Q8
Find Out & Write • Environmental Observation
In Chapter 5 ('Plants and Animals Live Together'), what key natural elements or community roles are highlighted? List three observations.
[3 Marks]
✅ Step-by-Step Solution & Working
Observations:
1. Interdependence: Plants, animals, and humans depend closely on each other for food, oxygen, and shelter.
2. Community Helpers: People in our neighbourhood perform essential services (farmers, sanitation workers, doctors, teachers).
3. Resource Conservation: Water, soil, and clean air are precious gifts that must not be polluted or wasted.
1. Interdependence: Plants, animals, and humans depend closely on each other for food, oxygen, and shelter.
2. Community Helpers: People in our neighbourhood perform essential services (farmers, sanitation workers, doctors, teachers).
3. Resource Conservation: Water, soil, and clean air are precious gifts that must not be polluted or wasted.
CBSE Step-by-Step Marking Scheme
Interdependence observed
1 M
Community helpers recognized
1 M
Conservation awareness
1 M
Q9
Discuss & Share • Classroom Activity
Discuss with your classmates: How does the change of seasons impact the food we eat, clothes we wear, and activities in 'Plants and Animals Live Together'?
[3 Marks]
✅ Step-by-Step Solution & Working
Seasonal Impact:
• Summer: We wear light cotton clothes, drink lots of water and fresh juices, and eat fruits like mangoes and watermelons.
• Winter: We wear warm woollens, enjoy hot soups and nuts, and sit in the sun.
• Monsoon: We use umbrellas and raincoats, and enjoy hot pakoras while taking care to avoid stagnant water.
• Summer: We wear light cotton clothes, drink lots of water and fresh juices, and eat fruits like mangoes and watermelons.
• Winter: We wear warm woollens, enjoy hot soups and nuts, and sit in the sun.
• Monsoon: We use umbrellas and raincoats, and enjoy hot pakoras while taking care to avoid stagnant water.
CBSE Step-by-Step Marking Scheme
Summer adaptations
1 M
Winter adaptations
1 M
Monsoon adaptations
1 M
Q10
Think & Reflect • Environmental Care
What simple daily action can you and your family take to reduce waste and protect nature as suggested in 'Plants and Animals Live Together'?
[2 Marks]
✅ Step-by-Step Solution & Working
Daily Actions:
1. Segregate Waste: Keep green dustbins for wet biodegradable kitchen waste and blue dustbins for dry recyclable plastic/paper.
2. Avoid Single-Use Plastic: Carry cloth bags for vegetable shopping and refill reusable steel water bottles.
1. Segregate Waste: Keep green dustbins for wet biodegradable kitchen waste and blue dustbins for dry recyclable plastic/paper.
2. Avoid Single-Use Plastic: Carry cloth bags for vegetable shopping and refill reusable steel water bottles.
CBSE Step-by-Step Marking Scheme
Waste segregation explained
1 M
Avoiding single-use plastics
1 M
Q11
Activity • Classification & Grouping
Classify the following items into Living Things and Non-Living Things: Neem tree, School bus, Butterfly, River stone, Honeybee, Wooden table.
[3 Marks]
✅ Step-by-Step Solution & Working
Classification:
• Living Things: Neem tree, Butterfly, Honeybee (they breathe, grow, and reproduce).
• Non-Living Things: School bus, River stone, Wooden table (they do not grow or breathe).
• Living Things: Neem tree, Butterfly, Honeybee (they breathe, grow, and reproduce).
• Non-Living Things: School bus, River stone, Wooden table (they do not grow or breathe).
CBSE Step-by-Step Marking Scheme
Living things identified correctly
1.5 M
Non-living things identified correctly
1.5 M
Q12
Field Exploration • Plants in Neighbourhood
Look closely at leaves of different plants around your school. How do they differ from one another in shape, colour, and texture?
[3 Marks]
✅ Step-by-Step Solution & Working
Leaf Observations:
• Shape: Banana leaves are broad and long, peepal leaves have a pointed tip, and pine needles are thin and pointy.
• Colour: Leaves vary from light yellow-green to dark emerald green, and some crotons have red or purple spots.
• Texture: Lotus leaves feel waxy, rose leaves feel soft with serrated margins, and hibiscus leaves feel slightly rough.
• Shape: Banana leaves are broad and long, peepal leaves have a pointed tip, and pine needles are thin and pointy.
• Colour: Leaves vary from light yellow-green to dark emerald green, and some crotons have red or purple spots.
• Texture: Lotus leaves feel waxy, rose leaves feel soft with serrated margins, and hibiscus leaves feel slightly rough.
CBSE Step-by-Step Marking Scheme
Difference in shape
1 M
Difference in colour
1 M
Difference in texture
1 M
Q13
Health & Hygiene • Good Habits
Why must we wash our hands with soap before eating and after using the toilet? Describe the correct 6-step method.
[2 Marks]
✅ Step-by-Step Solution & Working
Importance & Method:
• Washing with soap removes invisible disease-causing germs and bacteria.
• Steps: Wet hands, apply soap, rub palms together, wash backs of hands, clean between fingers and under nails, rinse thoroughly under running water, and dry with a clean towel.
• Washing with soap removes invisible disease-causing germs and bacteria.
• Steps: Wet hands, apply soap, rub palms together, wash backs of hands, clean between fingers and under nails, rinse thoroughly under running water, and dry with a clean towel.
CBSE Step-by-Step Marking Scheme
Reason for washing hands
1 M
Steps described
1 M
Q14
Water Conservation • Every Drop Counts
List three practical ways to save drinking water at home and in school.
[3 Marks]
✅ Step-by-Step Solution & Working
Water Saving Ways:
1. Turn off the tap tightly while brushing teeth instead of letting water run.
2. Use a bucket and mug for bathing rather than a shower.
3. Pour leftover water from drinking bottles into plant pots instead of draining it away.
1. Turn off the tap tightly while brushing teeth instead of letting water run.
2. Use a bucket and mug for bathing rather than a shower.
3. Pour leftover water from drinking bottles into plant pots instead of draining it away.
CBSE Step-by-Step Marking Scheme
Three valid water conservation methods
3 M
Q15
Animal Empathy • Coexistence
How can we help birds and stray animals during the hot summer season?
[2 Marks]
✅ Step-by-Step Solution & Working
Helping Summer Animals:
• Place an earthen clay bowl filled with clean fresh water on the terrace, balcony, or under a tree for thirsty birds.
• Keep a bowl of water in the shade outside the house for community dogs and cats.
• Never disturb bird nests or throw stones at sleeping animals.
• Place an earthen clay bowl filled with clean fresh water on the terrace, balcony, or under a tree for thirsty birds.
• Keep a bowl of water in the shade outside the house for community dogs and cats.
• Never disturb bird nests or throw stones at sleeping animals.
CBSE Step-by-Step Marking Scheme
Clay water bowls for birds
1 M
Kind treatment and shade
1 M
Q16
Community Living • Festivals and Food
Name two traditional Indian festivals and describe the special food items prepared and shared during these celebrations.
[2 Marks]
✅ Step-by-Step Solution & Working
Festivals and Traditional Foods:
1. Eid: Families prepare and share sweet Sevaiyan (vermicelli pudding) and biryani with neighbours.
2. Holi: People celebrate spring by sharing traditional Gujiyas and refreshing thandai.
3. Diwali: Families distribute homemade Laddoos, kaju katli, and savoury namkeens.
1. Eid: Families prepare and share sweet Sevaiyan (vermicelli pudding) and biryani with neighbours.
2. Holi: People celebrate spring by sharing traditional Gujiyas and refreshing thandai.
3. Diwali: Families distribute homemade Laddoos, kaju katli, and savoury namkeens.
CBSE Step-by-Step Marking Scheme
Two festivals named with corresponding special food
2 M
Q17
Review Questions • True or False
State True or False:
(a) Plants take in carbon dioxide and give out oxygen during daytime.
(b) Rainwater harvesting means collecting and storing rainwater for future use.
(c) Burning dry leaves and plastic in open air keeps the environment healthy.
[3 Marks]
(a) Plants take in carbon dioxide and give out oxygen during daytime.
(b) Rainwater harvesting means collecting and storing rainwater for future use.
(c) Burning dry leaves and plastic in open air keeps the environment healthy.
✅ Step-by-Step Solution & Working
Answers:
• (a) True: Photosynthesis produces oxygen.
• (b) True: Rainwater harvesting replenishes groundwater.
• (c) False: Burning releases toxic smoke and causes severe air pollution. Dry leaves should be composted into organic manure.
• (a) True: Photosynthesis produces oxygen.
• (b) True: Rainwater harvesting replenishes groundwater.
• (c) False: Burning releases toxic smoke and causes severe air pollution. Dry leaves should be composted into organic manure.
CBSE Step-by-Step Marking Scheme
True, True, False with explanations
3 M
🌟 NEP 2020 Competency-Based Case Study
Ecosystem Fragility: Decline of Honeybees
A farmer sprayed heavy chemical pesticides across his mustard and apple orchards to kill aphids. Soon after, all local wild honeybees and bumblebees vanished from the farm. The following spring, the fruit yield dropped by more than 75% even though the trees bloomed with flowers.
Analytical Task: Apply your understanding of 'Plants and Animals Live Together' to explain why the farmer's harvest collapsed after the bees died.
Evaluation & Model Answer:
The farmer's harvest failed because honeybees are the primary pollinators of apple and mustard blossoms. When the bees landed on blossoms to gather nectar, pollen grains stuck to their fuzzy bodies and were transferred to neighboring flowers, enabling fertilization and seed/fruit formation. When pesticides wiped out the pollinators, the flowers withered without setting fruit. This demonstrates that killing one vital link disrupts the entire food-producing ecosystem.
Rubric: Pollination mechanism, role of beneficial insects, ecological domino effect of chemical pesticides (4 Marks).