9th class Biology Chapter 3 Biodiversity MCQs | Biology MCQs for Class 9 Sindh Board

9th Class Biology Chapter 3 Biodiversity MCQs Solved Exercise Notes in PDF

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Today, We are going to share 9th Class Biology Chapter Three Biodiversity MCQs and notes prepared from the Sindh Textbook Board.

These notes will cover 9th Class Biology  Textbook exercise MCQs and Question Answers from the Sindh Board.

9th Class Biology 2nd Chapter Biodiversity MCQs with Answers

Here are the most repeated MCQs questions of 9th class Biology Chapter 3 "Biodiversity" prepared from the Sindh Textbook.

The below-given Multiple Choice Questions (MCQs) will help students in improving their grades in upcoming board exams. 

Because, these MCQs repeats every year in different board exams. 

So, there are chances that most of the MCQs will be repeated again in upcoming board examination.

Here are the most repeated MCQs from the Class 9 Biology Chapter Three Biodiversity. 

01. The diversity of plants called:

a) Flora

b) Fauna

c) Variety of species

d) Both (a) & (b)

Sol: (a) Flora

02. The diversity of animals called:

a. Flora

b. Animal biology

c. Fauna

d. None of the above

Sol: (c) Fauna

03. All are involved in classification except

(a) Analogous ✓

(b) Homologous

(c) Cytology

(d) Genetics

04. A species known is in danger of going extinct: 

a) Extinct species

b) Endangered species

c) Micro species

d) Threatened species

Sol: (b) Endangered species

05. A species is said to be _____ when the last member of the species passes away.

a) Established

b) Extinct

c) Endangered

d) Threatened

Sol: (b) Extinct

06. Which of the following represents an organism's scientific name correctly? (a) Houbara bustard ✓ (b) E.coli (c) Canis lupus

(d) Alium Cepa

07. Classification is the process of organizing organisms according to:

A. How they feed B. The features they have in common

C. How they can survive C. How they respire

Sol: (b) The features they have in common

08. Marco Polo sheep is found in: a) Chitral Gol National Park

b) Ayub National Park c) Khunjerab National Park d) Keerthar National Park Sol: (b) Khunjerab National Park

09. What is the smallest and basic unit of classification? (a) order (b) species ✓ (c) genus (d) family

Sol: (b) species

10. Mushrooms are an example of a kingdom: a) Fungi b) Plantae c) Animalia d) Monera Sol: (a) Fungi

11. Organisms that can prepare their food from simple inorganic materials are called: a) Heterotrophs b) Autotrophs

c) Consumers d) Producers Sol: (b) Autotrophs

12. _______ means different in structure but similar in function. (a) Morphology (b) Homologous (c) Analogous ✓ (d) Taxonomy

Sol: (c) Analogous

13. Cutting down trees to convert forest land to non-forest land. a) Vulnerable

b) Genus c) Protista d) Deforestation Sol: (d) deforestation

14. Kitab Al-hayawan is the book of:

A. Aristotle B. Al Jahiz C. Whittaker D. Linnaeus

Sol: (b) Al Jahiz

15. The branch of biology that deals with organism classification is known as: a) Systematics b) Taxonomy c) Taxa d) Taxonomic hierarchy Sol: (b) Taxonomy

16. _______ means Similar in structure. (a) Morphology (b) Homologous ✓ (c) Analogous (d) Taxonomy

Sol: (b) Homologous

17. A particular organism has multicellular sex organs and is specialized in photosynthesis. What kingdom does it belong to? A. Animalia

B. Protista C. Fungi D. Plantae Sol: (d) Plantae

18. ____ means external features of an organism. (a) Morphology ✓ (b) Homologous (c) Analogous (d) Taxonomy

Sol: (a) Morphology

19. “Eucalyptus plant” was imported from…….. a) Canada b) Australia c) Japan d) China Sol: (b) Australia

20. The father of Taxonomy is ______. (a) Ernst Hackle (b) Copeland (c) Carolus Linnaeus. ✓ (d) Robert Whittaker

21. The correct sequence of classification is: a) Order, family, genus b) Phylum, class, order c) Class, order, family d) All of the above Sol: (d) All of the above

22. Taxon of Order was introduced by:

A. Carolus Linnaeus B. John Ray C. Augustus Rivinus D. Aristotle

Sol: (d) Augustus Rivinus

23. Which kingdom's members are entirely heterotrophic and have cell walls? (a) Monera (b) Protista (c) Plantae (d) Fungi ✓

Sol: (d)

24. The process of assigning scientific names to living things is known as a) Nomenclature b) Binomial nomenclature c) Scientific notation d) Scientific method Sol: (b) Binomial nomenclature

25. The initial letter of the _____ name is capitalized in binomial nomenclature. a) Family b) Species c) Class d) Genus Sol: (d) Genus

26. All of the following are included in the kingdom Metaphyta according to four kingdom classifications. (a) Algae ✓ (b) Angiosperm (c) Gymnosperm (d) Bryophyta

Sol: (a) Algae

27. “Allium cepa” is the scientific name of……. a) House crow b) Onion c) Starfish d) Jellyfish Sol: (b) Onion

28. In the kingdom system virus placed in (a) Monera (b) Protista (c) Plantae (d) None of these ✓

Sol: (d)

29. Biodiversity is the source of:

A. Food B. Fibers C. Rubber and oil D. All of these

Sol: (d) All of these

30. The field that studies classification and the evolutionary background of creatures is known as: a) Taxonomy b) Systematics c) Genus d) Species Sol: (b) Systematics

9th Class Biology Biodiversity Question Answers from Textbook Exercise 

The 70% of the board paper consists of Questions and Answers from the textbook. 

Therefore, We have prepared complete Question Answers notes of the 9th Class Biology Biodiversity from the textbook.

Biology class 9 chapter 3 solved exercise mcqs have been already shared above and now biology class 9 biodiversity question answers will be included in these 9th class biology pdf notes.

Q.1: Define biodiversity and write down the importance of biodiversity.

Ans: 

DEFINITION OF BIODIVERSITY:

Biodiversity is the combination of two words; Bio which means life and diversity means variation thus it is defined as;

“Biodiversity diversity is the degree of variation within or among the species that exist on different regions of the earth”.

Importance of Biodiversity:

Biodiversity offers numerous benefits like fiber, oil, dyes, and food, stabilizes ecosystems, reduces pollution, and provides fertile soils. It also aids in drug discovery, and medicinal resources, and beautifies nature, enhancing tourism and regulating atmospheric and water supply chemistry.

Q.2: How living organisms are classified into two kingdom classifications? Also, shows the two classifications of two organisms in tabular form.

Ans: 

Two Kingdom classification:

Carlos Linnaeus, credited with founding taxonomy, introduced a classification scheme for the two previously divided kingdoms of creatures.

These two kingdoms  were:

• Kingdom Plantae
• Kingdom Animalia

Basis Of Two Kingdom Classification

Plant Kingdom

• All the organisms that possess cell walls are placed in the plant kingdom.
• There is a conductive and contractile system absent.
• Chlorophyll is present.
• Plants are autotrophic. (They can prepare their food.)
• Locomotory organs are absent. Organs can not move from one place to another.
• External stimuli are responded to slowly.
• e.g.: Bacteria, Algae, Fungi, Bryophytes, Pteridophytes, Gymnosperms, and angiosperms.

Animal Kingdom:

• Those organisms that do not have a cell wall were placed in the animal kingdom.
• There is a conductive and contractile system present.
• Chlorophyll is absent. 
• They are heterotrophic. Those organisms that can not produce their food are called heterotrophic.
• Locomotory organs are present. Organs can move from one place to another.
• External stimuli are responded to quickly.
• e.g.: Invertebrates (including protozoa), vertebrates.

Q.3: Describe the problems associated with conserving biodiversity in Pakistan.

Ans: 

Problems associated with conserving biodiversity in Pakistan:

Here are some of the primary challenges to implementing a Biodiversity Action Plan (BAP): 

• Lack of knowledge about environmental issues among civil society and decision-makers.
• Government departments' limited capabilities (lack of individual competence and performance incentives).
• Inadequate policy formulation, a lack of ability to discern between public and private interests, and a poor pace of decision-making are examples of weak governance.
• Lack of funding.