Important Topics Covered in the Chapter 9 Class 6 Science
- Organisms and the surroundings where they live
- Habitat and adaptation
- A journey through different habitats
- Some aquatic habitats
- Characteristics of organisms
- Living organisms and excretion
Points Discussed in This Chapter
- The habitat of plants and animals refers to the environment in which they exist. Several types of plants and animals may coexist in the same environment.
- Adaptation is the presence of certain traits and behaviors that allow a plant or animal to live in a given ecosystem.
- There are many different sorts of habitats, but they may be divided into two categories: terrestrial (on land) and aquatic (on water) (in water).
- A diverse diversity of species may be found in various habitats. Biotic components are made up of plants, animals, and microbes.
- Rocks, soil, air, water, light, and temperature are all abiotic components of our environment.
- Living creatures have some traits in common: they require food, they breathe and excrete, they respond to their surroundings, and they reproduce, grow, and move.
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1. What is a habitat?
Ans: Habitat is the place that fulfills all the needs like food, water, the shelter of the organism and organisms inhabit their life.
2.How are cactus adapted to survive in deserts?
Ans: Cactus adapts different measures to survive in desert:
i) Cactus has the ability to transform leaf into spines. This helps in reducing transpiration.
ii) Cactus transform their stem so that photosynthesis can take place.
iii) The stem of the cactus has the ability to prevent loss of water and can retain water due to the presence of a waxy layer.
iv) Cactus roots penetrate deep into the soil to obtain more surface area for water absorption.
3. Fill in the blanks:
a) The presence of specific features, which enable a plant or animal to live in a particular habitat, is called ______.
Ans: adaptation
b) The habitats of the plants or animals that live on land are called____ habitat.
Ans: terrestrial
c) The habitats of plants and animals that live in water are called______ habitat.
Ans: aquatic
d) Soil, water, and air are the _______ factors of a habitat.
Ans: abiotic
e) Changes in our surrounding that make us responds to them, are called_______.
Ans: stimuli
4. Which of the things in the following list are non-living? Plough, Mushroom, Sewing machine, Radio, Boat, Water, Hyacinth, Earthworm.
Ans: In the following list the non-living things are:
1. Plough
2. Sewing machine
3. Radio
4. Boat
5. Give an example of a non-living thing, which shows any two characteristics of living things.
Ans: A car is an example of a non-living thing that shows characteristics of living things.
The two characteristics are:
1. Car moves.
2. Car requires energy.
6. Which of the non-living things listed below were once parts of the living thing?Butter, Leather, Soil, Wool, Cooking gas, Apple, Rubber.
Ans: The list of the non-living are:
1. Butter
2. Leather
3. Apple
4. Wool
7. List the common characteristic of living things.
Ans: The common characteristic shown by living things are:
1. Living things grow.
2. Living things respond to stimuli.
3. Living things need food.
4. Living things reproduce.
5. Living things excrete.
6. Living things breathe.
7. Living things move.
8. Explain, why speed is important for survival in the grasslands for animals that live there. (Hint: There are few trees or places for animals to hide in grasslands habitats)
Ans:
- The carnivores feed on herbivores for their food.
- In grasslands, there are very few trees to hide so herbivores need speed to move faster and prevent themselves from carnivores.
- Example tiger and deer.
- Speed is the major factor for their survival.
NCERT Solutions for Class 6 Science – Free PDF Download
NCERT Class 6 Science Chapter 9 solutions are provided by experts with a great experience at the professional grounds. The solutions are provided according to the chapters and subjects as per NCERT textbooks.
Chapter 9 –The Living Organisms and Their Surroundings
9.1 Organisms and The Surroundings Where They Live
Our Earth is a vast land. There are different regions on it, and various types of living creatures make these places as their permanent home. Living creatures which are available in these regions are called organisms. You will be surprised to know that even the opening of volcanoes is home to tiny living organisms. Even the houses where we live is a living ground for specific organisms. To make it simpler, the environment in which animals live is called a habitat. It is the habitat on which the organisms depend for food sources, air quality, water sources, shelter and others.
9.2 Habitat and Adaptation
We have learnt about habitat, but what is adaptation? Depending on the environment, plants and animals keep changing in terms of habits and features. This helps them to live in that particular habitat. This is known as adaptation. If you want to see this on your own, consider carrying a notebook and pencil when you go on a trip with your family. You will notice, depending on the region, and nature, the plants, animals and even the physical state of humans change.
To see this is in a more simple way, think about the plants and animals in the sea, ocean, river, lakes, rivers etc. All of them use the dissolved air under the water. In terms of dessert, where water is not abundant, plants and animals live according to the condition to breathe air from the surrounding.
9.3 A Journey Through Different Habitats
Desserts – Due to scarcity of water, leaves of desert plants shrink to spines, and this causes reduced water loss through transpiration. Rats and snakes live in burrows to escape the intense heat and only come out after the sunsets.
Mountains – Trees are cone-shaped, and most of the leaves have thorns on them to reduce the space for rainwater and snow accumulation. Most animals have thick fur to protect themselves from the intense cold.
Grasslands – Plants and trees in these areas are lush green during the rainy season, however, turn pale brown during the dry season. Animals live here according to the changing seasons, and thus, the regions are also known as one of the most productive landscapes.
Aquatic/Marine Habitats – Living organisms that make oceans and seas, their home have streamlined gills and bodies. Here, they are adapted to live peacefully in salty water.
Fresh Water – Living organisms that cannot survive in salty water, make freshwater as their home. These include ponds, lakes, rivers etc.
9.4 Living Things Around Us
The Earth consists of both living and non-living things. Things that breathe and grow are living things. On the other hand, things that cannot breathe or grow are known as non-living things.
Every living thing on Earth needs food to survive. The type of food depends on the living condition and environment.
Living things are bound to grow as they are made of cells and tissues. These continue to grow in sizes and numbers to make the living organism mature and be a part of future reproduction cycle. The food they consume helps them in the process of growing. Respiration is important for all living organisms. Anything that lives has to breathe to grow and obtain energy from the food consumed. The mechanism of respiration may vary depending on the adaptation.
Every living being can change itself according to the situation. Therefore, all living things respond to stimuli. It is because of the stimuli that living organisms change their living condition according to the environment. Every living thing on Earth is included in the reproductive system. As living things are made from cells and tissues, they help in the process of growth and later reproduce their own kind to increase the residents based on the surrounding environment.
As every living organism consumes food to grow, some parts of the consumed food remain as waste. Living organisms strip off the waste in the form of excretion. In plants, the process of excretion is known as secretion.
Not all living things can move around. Some of the common examples include – plants, trees, bushes etc. Only animals can move from one place to another in search of food and to perform other actions. Trees stay anchored to soil with the help of roots and consume their food from nature.
To keep it simple for 6th standard education, life is a process through which living organisms grow, feed, move, eat, feel, respire, excrete and reproduce. Life gives us the joy of this existence.
Exercise 9.4 total solutions contain 8 Questions (3 short questions and 5 Long questions).
Key Features of NCERT Solutions for Class 6 Science Chapter 9
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Conclusion
The NCERT Solutions for Class 6 Science Chapter 9, “The Living Organisms And Their Surroundings,” offered by Study Studio, serve as a valuable resource for young learners. This chapter introduces students to the fascinating world of living organisms and how they interact with their surroundings. The provided solutions and explanations simplify complex concepts, making it easier for students to grasp the material. By using Study Studio’s resources, students can develop a deeper understanding of the natural world, from adaptation and habitats to ecosystems. These solutions are a helpful aid for Class 6 students, empowering them to excel in their science studies and develop a genuine appreciation for the living organisms in our environment.