Interaction between biotic and abiotic factors

Author:Tamil Nadu Board
3rd Tamil Nadu Board
IMPORTANT

Important Questions on Interaction between biotic and abiotic factors

MEDIUM
IMPORTANT

Plants and human beings are living things. Why do human beings depend on plants?            

MEDIUM
IMPORTANT

Classify the following biotic factors.

(Tulsi, Fungi, Mango tree, Rabbit, Eagle, Cat, Dog, Cucumber plant, Human, Grass, Crocodile, Crow, Bacteria)

Producers:

Consumers:

Decomposers:

MEDIUM
IMPORTANT

Create an interlink of living and non-living factors.  

MEDIUM
IMPORTANT

Why is plant the most important living thing?  

MEDIUM
IMPORTANT

There is a large banyan tree in a park. Monkeys and birds have made the tree their home. Humans too spend time under the tree. Discuss how the tree, monkeys, birds, and humans are interdependent.                 

 

EASY
IMPORTANT

Write the needs of the following.

1. Birds :

2. Insects :

3. Human beings:   

MEDIUM
IMPORTANT

The following statements describe some characteristics of living things. Identify and write the characteristic features using the given hints.
(Characteristics Hints: Move, Breathe, Feel, Needs Food, Grow, Reproduce)

Statements Characteristic features

1. Touch-me-not plant closes its leaves when it is touched

 

2. A papaya seed becomes a papaya tree

 

3. A dove flies in the sky

 

4. A cow eats grass

 

5. A cat gives birth to kittens

 

6. Human beings and animals breathe in and breathe out air

 

EASY
IMPORTANT

Which of the non-living things can float?

                                 

 

EASY
IMPORTANT

We get wood from trees which are the living things. A chair is made from wood. Is the chair a living thing or a non-living thing?

Question Image                                               

EASY
IMPORTANT

A swing goes to and fro. Is it living or non-living?

MEDIUM
IMPORTANT

Classify the following as Biotic / Abiotic factors.  
Plants, Chair, fish, Elephant, Washing machine, Peacock, Book, Glass, Chalk piece, Cat, Rain, Frog, Watch, Man, Pen, Lion, Water.

Biotic Abiotic

 

 

 

 

 

 

 

 

 

 

 

MEDIUM
IMPORTANT

Match the following sources with their products and uses.

 Question Image       Question Image          Question Image
 Question Image  Question Image  Question Image
 Question Image  Question Image  Question Image
 Question Image   Question Image  Question Image
 Question Image  Question Image  Question Image
 Question Image Question Image Question Image

 

EASY
IMPORTANT

What are the biotic factors of a balanced ecosystem?  

EASY
IMPORTANT

List the abiotic factors needed for insects. 

EASY
IMPORTANT

Write two examples for biotic and abiotic factors. 

EASY
IMPORTANT

Vijay placed two things 'P' and 'R' (one living and one non-living) in separate cages with food and water.

Number of weeks

Weight of P'

Weight of 'R'

Week 1

2kg

1.5kg

Week 2

4kg

1.5kg

Week 3

6kg

1.5kg

Week 4

8kg

1.5kg

 

What will be the weight of living thing in week 6? 

EASY
IMPORTANT

Vijay placed two things 'P' and 'R' (one living and one non-living) in separate cages with food and water.

Number of weeks

Weight of 'P'

Weight of 'R'

Week 1

2kg

1.5kg

Week 2

4kg

1.5kg

Week 3

6kg

1.5kg

Week 4

8kg

1.5kg

Which thing is likely to be a living thing? Give a reason for your answer.

EASY
IMPORTANT

Van Mahotsav' is organised during the first week of July every year.

EASY
IMPORTANT

Abiotic factors are important for biotic factors.

EASY
IMPORTANT

Match the following.

Column I Column II

1. Stone 

i. Consumer
2. Bacteria ii. Abiotic factor
3. Plants iii. Decomposer
4. Buffalo iv. Producers