5th Standard, E.V.S Science, Chapter 1
LIVING WORLD
- What are living beings?
Answer: Living beings are organisms that exhibit certain characteristics like growth, reproduction, and movement, and are made up of cells. Examples of living beings include animals, plants, and microorganisms like bacteria. - What are the characteristics of living beings?
Answer: The characteristics of living beings are as follows.
a) Living beings are made up of cells. b) Living beings respire.
c) Living beings eat food. d) Living beings grow.
e ) Living beings move. f) Living beings excrete.
g) Living beings reproduce h) Living beings respond to stimulus
i) Living beings have life span. - In the following chart some components of the environment and some living characteristics are given. Read carefully. If in each of the component the characteristics given in front of them are found, put () mark. If these characteristics are not found put () mark.
Components of the environment Characteristics
Growth Eating food Movement Respiration Excretion Response to stimulus Reproduction
Mouse √ √ √ √ √ √ √
Mango √ X X X X √ X
Brick X X X X X X X
Clock X X X X X X X
Butterfly √ √ √ √ √ √ √
Man √ √ √ √ √ √ √
Frog √ √ √ √ √ √ √
Paper X X X X X X X
Mobile X X X X X X X - Some of the components seen in environment are given below. Identify them as living beings or non-living things. Put () mark in front of the correct choice.
Components of the environment Living being Non Living Being
Birds √ X
Balloon X √
Water X √
Mango tree √ X
Vehicle X √
Pen X √ - Activity: Make a list of other living beings and non-living things you have seen.
Answer: The other living beings and non-living things are,
Living beings: Man, Cows, Tigers, Birds, insects, worms, Plants, Trees, grass, fish, crocodile, frog, bacteria, virus etc.
Non-living beings: Table, chair, book, pen, car, house, Water, rocks, air, sunlight, Phone, computer, clothes etc. - Observe the given picture. Identify the picture and write here.
Answer: Respiratory system – Lungs
- The names of some living beings are given below. They help us to work. How do they help us? Write here.
Living Being Help (work)
Elephant Tourism attractions and some hard works
Bullock Transportation, ploughing
Dog Tracking, hunting, to guard our house
- Observe the picture. Four important components needed to produce food by the plants are given. An activity (which? From what?) is given below. Join the statements correctly and write.
Which? From What?
Solar energy Sun
Water, minerals, salt Soil
Carbon dioxide atmosphere
Chlorophyll green leaf
- In the preparation of food by the plants, glucose is produced and oxygen is released. Write here, the uses of these two for the living beings.
- Glucose – Glucose provides energy to individuals who are too sick to eat, Glucose is used to quickly raise low blood sugar levels (hypoglycaemia), the brain relies heavily on glucose for its energy needs.
2. Oxygen – need for human for respiration, combustion, and in medicine also. It’s used to help living things breathe, to burn things (like fuel in a car or a fire), and in hospitals to help patients who are having trouble breathing. - Observe the pictures given below. How do these plants obtain their food?
Answer: Though plants like Drosera, Nepenthes, and Utricularia prepare their own food, they depend on insects for nitrogen. These are called insectivorous plants. - What are the herbivorous animals?
Answer: The Animals that eat only plants and plant products are called herbivorous animals. - What are the carnivorous animals?
Answer: The Animals that eat other animals are called carnivorous animals. - What are the omnivorous animals?
Answer: The Animals that eat both plants and animals are called omnivorous animals. - With the help of these pictures list out herbivore, carnivore and omnivore in the chart below.
Answer:
Herbivore: Elephant, Rabbit,
Carnivore: Lion, Tiger
Omnivore: Cat, Dog, Parrot, Fox, Bear, Sparrow - Certain statements related to growth are given below. Write the statements are true or false. Correct the incorrect statements and write.
a) All organisms are small at the time of birth, later acquire definite height and size. (True)
b) Growth takes place rapidly in one or two days. (False)
Answer: Growth takes place in some days.
c) Plant growth is observed at its stem tip or the size of the stem. (True) - Animals move from one place to another. They have special organs for this. Some animal names are given below. Write their organs of movement here.
Man – Legs (walking)
Eagle – Wings (flying)
Kangaroo – Legs (walking)
Bat – Wings (flying) - Why do animals move? Discuss in groups and write in the space given below.
Answer: Animals move from one place to another. They have specified organs for this. They move to find foods, to escape from enemies and danger etc. - Given below are certain statements related to reproduction. If the statements are correct, put () mark. If the statements are wrong, put () mark.
a) Organisms continue their generation by reproduction. – Correct
b) Due to reproduction, the other organisms in environment get food. – Wrong. Due to reproduction, the other organisms in environment cannot get food.
c) Reproduction is seen only in animals. – Wrong. Reproduction is seen not only in animals but also in plants.
d) There will not be any danger in the environment by over-reproduction of a single organism. – Correct - List out the animals that lay eggs and those which directly give birth to young ones.
Animals that lay eggs: Birds, reptiles, insects, fish etc.
Animals those which directly give birth to young ones – Tiger, lion, horse, cow, donkey etc. - List out the plants that reproduce through seeds and stems.
The plants that reproduce through seeds: Mango, coconut, arecanut, jackfruit, papaya etc.
The plants that reproduce through stems: rose plant, flower plants etc. - Reproduction of plants is advantageous to animals including man in many ways. Discuss with your friends and list them.
Answer: Plants are the foundation of most food chains, offering sustenance directly or indirectly through herbivores. They also produce oxygen, a vital component for animal respiration. Animals, including humans, rely on plants for direct consumption (fruits, vegetables, grains) or indirectly by consuming animals that eat plants. Plants release oxygen as a byproduct of photosynthesis, which is essential for the respiration of most animals. Plant reproduction ensures a continuous supply of food for various animal species, including humans. - What are the ways that organisms respond to stimuli?
Answer: Folding of leaves when touched, in touch me not plant, stinging of scorpion when some external thing touches it, flower of sunflower plant turning towards the sun- these are the ways that organisms respond to stimuli. - What are the three types of life span can we seen in plants?
Answer: The three types of life span can we seen in plants are, annuals, biennials and perennials.
Annuals: Plants which bear flower, produce fruits and die in a year or a season.
Biennials: Plants which live upto two years or two seasons produce flower, fruit and seeds and die.
Perennials: Plants which live for many years and keep producing flower, fruit and seeds. - List the annuals, biennials and perennial plants.
Annuals: jowar, wheat, paddy, pumpkin, vegetables
Biennials: carrot, ginger, cabbage, sugarcane, beetroot,
Perennials: Mango, Lemon, Coconut, neem, jackfruit, Arecanut
