Science NCERT Solutions Class 6 Chapter 2 - Diversity in the Living World
The exercise below will help students in revising the concepts covered in Diversity in the Living World. Class 6 Science Diversity in the Living World question answer follows the latest NCERT syllabus, which includes how organisms are classified and their characteristics.
Question 1. Here are two types of seeds. What differences do you find among the roots and leaf venation of their plants?
![wheat]()
![kidney beans]()
Answer:
The first seed given is of wheat, which is one of the most important stable crops worldwide.
Roots: Wheat plants have a fibrous root system. The roots arise from the base of the stem and are thin and spread out in all directions, forming a dense network of small roots.
Leaf Venation: Wheat leaves have parallel venation, in which the veins run parallel to each other in the leaf.
The second seed is kidney beans, which are rich in protein, fiber, and essential minerals.
Roots: Kidney beans have a tap root system, where the primary root grows thicker and deeper, and the small branches arise from this.
Leaf Venation: Kidney beans have a reticulate type of leaf venation, where the veins form a network or a web-like structure across the leaf.
Question 2. The names of some animals are given below. Group them based on their habitats. Write the names of aquatic animals in the area marked ‘A’ and terrestrial animals in the area marked ‘B. ’ Enter the names of animals living in both habitats in part C. Horse, Dolphin, Frog, Sheep, Crocodile, Squirrel, Whale, Earthworm, Pigeon, Tortoise
![venn diagram]()
Answer:
A (Aquatic Animals):
B (Terrestrial Animals):
Horse
Sheep
Squirrel
Pigeon
Earthworm
Tortoise
C (Animals living in both habitats):
Question 3. Manu’s mother maintains a kitchen garden. One day, she was digging out radishes from the soil. She told Manu that radish is a kind of root. Examine a radish and write what type of root it is. What type of venation would you observe in the leaves of the radish plant?
Answer:
The radish is an example of a taproot. In this, the plant has a thick main root called the primary root and bears many side branches called secondary roots. In the radish plant, it helps in the storage of various sugars and starches, making it an important food source for us.
The leaves of the radish plant show reticulate venation. In which veins are irregularly distributed in the lamina, forming a network. This reticulate venation is mostly found in dicot plants.
Question 4. Look at the image of a mountain goat and a goat found in the plains. Point out the similarities and differences between them. What are the reasons for these differences?
![goats]()
Answer:
Similarities: Given below are some of the similarities found in the mountain goat and the goat found in the plains:
1- Both belong to the same kind of family; that is, both are goats.
2- Mountain goats and goats found in plains are herbivores, meaning they eat grass, leaves, and plants.
3- Both have horns on their head, despite their size and structure.
4- Both goats are mammals, meaning they give birth to their young and give milk.
Differences: There are some differences between these two types of goats, which are provided here:
1- Mountain goats have thick fur, which protects them from the cold and snow. Goats in the plains have thin fur as it is warm in the plains.
2- Mountain goats live alone or in small groups, whereas the goats in the plains live in larger groups.
3- The size of mountain goats is generally smaller than that of the goats in the plains.
4- Mountain goats can easily climb steep hills, but goats in the plains are more used to grazing on flat ground.
Question 5. Group the following animals into two groups based on any feature other than those discussed in the chapter— cow, cockroach, pigeon, bat, tortoise, whale, fish, grasshopper, lizard.
Answer:
Apart from the feature that has already been discussed in this chapter, we can classify these animals based on the presence or absence of a backbone.
Animals having backbone
Cow
Pigeon
Bat
Tortoise
Whale
Fish
Lizard
Animals without a backbone
Question 6. As the population grows and people want more comfortable lives, forests are being cut down to meet various needs. How can this affect our surroundings? How do you think we can address this challenge?
Answer:
As the population is growing, forests are being cut on a large scale, which is known as deforestation, to meet various needs. Here are some effects of this:
It leads to soil erosion, which results in the loss of the fertile layer of soil.
Deforestation also disturbs the habitat of many wild animals, birds, and insects.
Deforestation may lead to frequent floods as there are no trees and their roots to absorb rainwater.
There are some ways by which we can address this challenge:
We need to plant trees around us.
Natural resources like wood can be used carefully.
By using eco-friendly products that do not harm the environment.
Avoid using plastic bags as they do not decompose easily and cause pollution.
Question 7. Analyze the flowchart. What can be examples of ‘A’ and ‘B’?
![flow chart]()
Answer:
According to the above flow chart, plants having leaves and reticulate venation can be dicot plants, as this type of venation is unique in dicot plants.
Plants having leaves but not the reticulate venation must be the monocot plants because this venation cannot be seen in monocot plants.
A- Dicot Plant
B- Monocot Plant
Question 8. Raj argues with his friend Sanjay that the “Gudhal (hibiscus) plant is a shrub.” What questions can Sanjay ask for clarification?
Answer:
Sanjay can ask multiple questions of Raj to clarify his argument. Provided below are some of the questions:
1- What is the definition of a shrub?
2- How is a hibiscus plant different from a tree?
3- Can a hibiscus plant grow tall or stay small?
4- Is the hibiscus plant woody or soft?
Question 9. Based on the information in the table, find examples of these plants for each group.
Group | Type of Seed | Type of Root | Examples |
A | Dicot | Taproot |
|
B | Monocot | Fibrous roots |
|
(a) What other similarities do plants of group A have?
(b) What other similarities do plants of group B have?
Answer:
Group | Type of Seed | Type of Root | Examples |
A | Dicot | Taproot | Kidney Bean |
B | Monocot | Fibrous roots | Wheat |
(a) Dicot plants having taproots have some similarities that include the seeds having two cotyledons and reticulate venation found in leaves.
(b) Group B, having Monocot seeds and fibrous roots, has one cotyledon in their seeds and leaves have parallel venation.
Question 10. Observe the labeled part of a duck in the picture given below. What differences do you observe in the feet of the duck compared to the other birds? Which activity would the duck be able to perform using this part?
![duck and pigeon]()
Answer:
The labeled part of the duck is its webbed feet, which are different from the feet of other birds. The toes of ducks have skin in between that forms a ‘web, ’ which is not present in other birds. Other ones have individual toes without any skin present.
This helps the duck to swim and move easily in water. When the duck moves with its webbed feet, a lot of water is pushed backward, which allows the duck to move quickly forward; that is why ducks are very good swimmers.
Also, check the NCERT Books and the NCERT Syllabus here
Important Questions from Class 6 Science Chapter 2
To understand how questions are framed in the exam, it is important to practice questions. Below are a few important questions with their answers. More such questions are added in the NCERT Solutions for Class 6 Science Chapter 2 - Diversity in the Living World.
Question 1: Which of the following is an example of a herb?
a) Mango
b) Mint
c) Rose
d) Neem
Answer: b) Mint
Explanation:
Mint (genus Mentha) is an example of a herb because it is a small, aromatic, and soft-stemmed plant that typically grows close to the ground. Unlike trees such as mango or neem, which have woody stems, herbs like mint have non-woody stems and are often used for culinary, medicinal, and aromatic purposes. Mint plants are perennial herbs known for their distinctive fragrance and are widely used in cooking and herbal remedies. This distinguishes mint clearly as a herb, while mango, rose, and neem are trees or shrubs with woody stems.
Question 2: Venation is a term used to describe the pattern of arrangement of
a) Leaf
b) Flower
c) Floral Organs
d) All of them
Answer: a) Leaf
Explanation:
Venation means the pattern in which veins are arranged on a leaf. These veins carry water and nutrients to different parts of the leaf. There are mainly two types of venation, which are reticulate (net-like) and parallel.
Question 3: Which of the following plants has a fibrous root system?
a) Mango
b) Carrot
c) Grass
d) Radish
Answer: c) Grass
Explanation:
A fibrous root system has many thin roots growing from the base of the stem, like in grass. Tap roots have a main central root, like in mango, carrot, and radish.
Question 4: Which of the following is a characteristic of a dicot seed?
a) It has only one cotyledon
b) It has two cotyledons
c) It has no cotyledon
d) It has many cotyledons
Answer: b) It has two cotyledons
Explanation:
A dicot seed, like that of a pea or bean, has two cotyledons that store food for the developing plant. Monocot seeds, such as maize, have only one cotyledon.
Question 5: Which of the following animals is best adapted to live in desert habitats?
a) Frog
b) Snake
c) Fish
d) Camel
Answer: d) Camel
Explanation:
Camels are adapted to desert habitats because they can survive with little water and tolerate high temperatures. They store fat in their humps and have long eyelashes to protect their eyes from sand.
Question 6: Animals like frogs that can live both in water and on land are called:
a) Aquatic animals
b) Amphibians
c) Terrestrial animals
d) Aerial animals
Answer: b) Amphibians
Explanation:
Frogs are called amphibians because they are adapted to survive in both water and on land. They have moist skin and strong hind limbs that help them live in two types of habitats.
Question 7: The special features that help plants and animals survive in their surroundings are known as:
a) Adaptations
b) Activities
c) Movements
d) Reactions
Answer: a) Adaptations
Explanation:
Adaptations are special body features or behaviours that allow plants and animals to survive in their specific habitats. These may include breathing organs, body covering, or ways of obtaining food that suit their environment.
Question 8: Which type of venation is found in the leaves of banana plants?
a) Reticulate
b) Parallel
c) Dichotomous
d) Spiral
Answer: b) Parallel
Explanation:
Banana plants have long, narrow leaves with veins running parallel to each other. This type of venation is commonly seen in monocot plants like grass, wheat, and maize.
Question 9: Which of the following animals breathe through gills?
a) Frog
b) Dog
c) Fish
d) Lizard
Answer: c) Fish
Explanation:
Fish breathe through gills, which help them take in dissolved oxygen from water. Gills are specially adapted organs that allow fish to survive in aquatic habitats.
