Share
Notifications

View all notifications

Selina solutions for Concise Biology Class 8 ICSE chapter 4 - Ecosystems [Latest edition]

Login
Create free account


      Forgot password?
Textbook page

Chapters

Concise Biology Class 8 ICSE - Shaalaa.com

Chapter 4: Ecosystems

Multiple choice QuestionsShort Answer QuestionsLong Answer Questions

Selina solutions for Concise Biology Class 8 ICSE Chapter 4 Ecosystems Exercise Multiple choice Questions [Pages 40 - 41]

Multiple choice Questions | Q 1 | Page 40

Put a tick mark (✓) against the correct alternative in the following statement:

The term “ecosystem” is derived from the Greek word “Oikos” meaning.

  • Body weight

  • Food

  • House

  • Size

Multiple choice Questions | Q 2 | Page 41

Put a tick mark (✓) against the correct alternative in the following statement:

Rat in any food chain would occupy the position of

  • Tertiary consumer

  • Secondary consumer

  • Primary consumer

  • Producer

Multiple choice Questions | Q 3 | Page 41

Put a tick mark (✓) against the correct alternative in the following statement:

Evergreen broad-leaved trees are characteristic of

  • Tropical rain forests

  • Temperate deciduous forests

  • Coniferous forests

  • All of the above types of forests.

Multiple choice Questions | Q 4 | Page 41

Put a tick mark (✓) against the correct alternative in the following statement:

The number of steps in a food chain can never be more than

  • Four

  • Five

  • Six

  • Seven

Selina solutions for Concise Biology Class 8 ICSE Chapter 4 Ecosystems Exercise Short Answer Questions [Page 41]

Short Answer Questions | Q 1.1 | Page 41

Mention if the following statement is true or false 

Snakes are primary consumers 

  • True

  • False

Short Answer Questions | Q 1.2 | Page 41

Mention if the following statement is true  or false

Some humans are strictly primary consumers & some others are of other types of consumers also

  • True

  • False

Short Answer Questions | Q 1.3 | Page 41

Mention if the following statement is true or false .

No ecosystem can survive without light 

  • True

  • False

Short Answer Questions | Q 2 | Page 41

Match the items in Column I with as many items as possible in Column II.

  column I Column II
1 Grass (i) Carnivore
2 Deer (ii) Decomposers
3 cobra (iii) Primary Consumer
4 Vulture (iv) Autotroph
5 Microbes (v) Scavenger
Short Answer Questions | Q 3.1 | Page 41

Rewrite the following in their correct sequence in a food chain:

Snake → Grasshopper → Grass → Frog

Short Answer Questions | Q 3.2 | Page 41

Rewrite the following in their correct sequence in a food chain:

Grass → Tiger → Deer

Short Answer Questions | Q 3.3 | Page 41

Rewrite the following in their correct sequence in a food chain:

Snake → Peacock → Rat → Wheat

Selina solutions for Concise Biology Class 8 ICSE Chapter 4 Ecosystems Exercise Long Answer Questions [Page 41]

Long Answer Questions | Q 1 | Page 41

Differentiate among primary, secondary and tertiary consumers. Give one example of each in a food chain.

Long Answer Questions | Q 2.1 | Page 41

Define the term flora 

Long Answer Questions | Q 2.2 | Page 41

Define the term fauna.

Long Answer Questions | Q 3 | Page 41

List any three members each of the flora and fauna of tropical rain forests.

Long Answer Questions | Q 4.1 | Page 41

Define the following term and give two examples.

Autotrophs

Long Answer Questions | Q 4.2 | Page 41

Define a consumer and give two examples.

Long Answer Questions | Q 4.3 | Page 41

Define the food chain and give two examples.

Long Answer Questions | Q 4.4 | Page 41

Define the following term and give two examples:

Symbiosis

Long Answer Questions | Q 4.5 | Page 41

Define the following term and give two examples:

Parasitism

Long Answer Questions | Q 4.6 | Page 41

Define the following term and give two examples:

Predation

Chapter 4: Ecosystems

Multiple choice QuestionsShort Answer QuestionsLong Answer Questions
Concise Biology Class 8 ICSE - Shaalaa.com

Selina solutions for Concise Biology Class 8 ICSE chapter 4 - Ecosystems

Selina solutions for Concise Biology Class 8 ICSE chapter 4 (Ecosystems) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Concise Biology Class 8 ICSE solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Concise Biology Class 8 ICSE chapter 4 Ecosystems are Concept of Ecosystems, Biotic Components Consisting of Producers, Consumers, Decomposers, Meaning of Food Chain. Food Web, and Pyramid of Numbers, Interdependence Between Organisms: Symbiosis, Parasitism and Predation., Brief Account of Abiotic Or Non-living Components, Concept for Forest Ecosystem - Flora and Fauna, Concept of Consumer Rights.

Using Selina Class 8 solutions Ecosystems exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 8 prefer Selina Textbook Solutions to score more in exam.

Get the free view of chapter 4 Ecosystems Class 8 extra questions for Concise Biology Class 8 ICSE and can use Shaalaa.com to keep it handy for your exam preparation

S
View in app×