CBSE Class 12 Biology HOTs Biodiversity

Please refer to CBSE Class 12 Biology HOTs Biodiversity. Download HOTS questions and answers for Class 12 Biology. Read CBSE Class 12 Biology HOTs for Biodiversity below and download in pdf. High Order Thinking Skills questions come in exams for Biology in Class 12 and if prepared properly can help you to score more marks. You can refer to more chapter wise Class 12 Biology HOTS Questions with solutions and also get latest topic wise important study material as per NCERT book for Class 12 Biology and all other subjects for free on Studiestoday designed as per latest CBSE, NCERT and KVS syllabus and pattern for Class 12

Biodiversity Class 12 Biology HOTS

Class 12 Biology students should refer to the following high order thinking skills questions with answers for Biodiversity in Class 12. These HOTS questions with answers for Class 12 Biology will come in exams and help you to score good marks

HOTS Questions Biodiversity Class 12 Biology with Answers

 BIODIVERSITY

1 marks

Q.1) a) India has more than 50000 different strains of rice and 1000 varieties of mangoes.
 
        b) Western Ghats have a greater Amphibian diversity than the Eastern Ghats. What do you infer from the above two statements? 

Ans.1)  a) Genetic diversity       

            b) Species diversity

2 marks

Q.1

CBSE_Class_12_Biology_biodiversity_1 

Identify a,b,c and d in the above pie diagram showing global biodiversity of plants. 

Ans.1)  a) Angiosperms

            b) Algae 

            c) Fungi 

            d) Mosses

Q.2) Columbia located near the equator has nearly 1400 species of birds while new york at 41˚ N has 105 species and Greenland at 71˚ N has only 56 species.  Comment. 2

Ans.2) Latitudinal gradients in biodiversity. Biodiversity decreases as latitude increases .

           Biodiversity decreases as one move from tropics to equator.]

Q.3) Would the extinction of one insect pollinator affect the ecosystem? Explain 2 

Ans.3) Yes,  

It may lead to co-extinction of species  

In the case of a co-evolved plant-Pollinator Mutualism where extinction of one invariably Leads to the extinction of the other

Q.4) The species diversity of plants is much less than that of animals. What could be the reason for this and figure out how animals achieved greater diversifications? 2
 
Ans 4) Animals have greater mobility  Animals migrate to different environmental conditions and undergo adaptation
 
Q.5) Seeds of different genetic strains are kept for long periods in seed banks. Explain the conservative strategy involved in this process. 2
 
Ans.5) Ex-situ conservation They are preserved in viable and fertile condition for long periods using cryopresrvation techniques.
 
Q.6) Amazon forests are regarded are "Lungs of the Planet". Why? 2
 
Ans.6) Amazon forests have the greatest biodiversity in the world and harbour a large number of plant species which release large amount of oxygen into the atmosphere.
 
Q.7) National parks come under 'in situ' conservation while Zoological parks under 'exsitu' conservation. comment. 2

Ans.7) National parks- in situ- It is the practice of protecting the endangered species in their natural habitats either by protecting or by defending the species from predators.

Zoological parks- ex situ- the threatened species are taken out from their natural habitat and placed in special setting and given protection and special care.

Q.8) There are 34 biodiversity hot spots in the world. What are the criteria of selection of such hot spots? 2

Ans .8)   i) High level of species richness 

             ii) High degree of endemism

Q.9) Lantana & Eichornia are examples of two weeds. How do they affect the ecosystem? 2

Ans.9.These are examples of Alien species invasions. They threaten the indigenous species & lead to their extinction.

3 marks
 
Q.1) Biologists are not sure about how many prokaryotic species there might be. Give reasons.
 
Ans.1) i)The conventional taxonomic methods are not sufficient for identifying these microbial species
 
          ii)Many of the species cannot be cultured under laboratory conditions.
 
         iii) Biochemical and molecular biology techniques would put their diversity into millions.
 
Q.2) In an experiment, the slope of regression (z) is 0.2 and in another experiment the value obtained is 1.2. Explain the two situations in respect of species area relationships.

Ans.2) 0.2 is obtained in studies regardless of the taxonomic group or the region 1.2 is obtained if species area relationship is analysed among very large areas like the entire continents.

Q.3) Would Western Ghats ecosystems be less functional if one of its tree frog species is lost forever? Substantiate your answer in the light of hypothesis proposed by Paul Ehrlich.

Ans.3) According to the hypothesis proposed by Paul Ehrlich the "vivet popper hypothesis" each species is essential in the balance of nature. If one is lost that much imbalance is caused in the ecosystem.

Chapter 01 Reproduction in Organisms
CBSE Class 12 Biology HOTs Reproduction In Organisms
Chapter 02 Sexual Reproduction In Flowering Plants
CBSE Class 12 Biology HOTs Sexual Reproduction In Flowering Plants
Chapter 03 Human Reproduction
CBSE Class 12 Biology HOTs Human Reproduction
Chapter 04 Reproductive Health
CBSE Class 12 Biology HOTs Reproductive Health
Chapter 05 Principles of Inheritance and Variation
CBSE Class 12 Biology HOTs Principles Of Inheritance And Variation
Chapter 06 Molecular Basis of Inheritance
CBSE Class 12 Biology HOTs Molecular Basis of Inheritance
Chapter 08 Human Health and Disease
CBSE Class 12 Biology HOTs Human Health and Disease
Chapter 09 Strategies for Enhancement In Food Production
CBSE Class 12 Biology HOTs Strategies For Enhancement In food Production
Chapter 10 Microbes In Human Welfare
CBSE Class 12 Biology HOTs Microbes In Human Welfare
Chapter 11 Biotechnology Principles and Processes
CBSE Class 12 Biology HOTs Biotechnology Principles and Processes
Chapter 12 Biotechnology and Its Application
CBSE Class 12 Biology HOTs Biotechnology And Its Applications
Chapter 13 Organisms and Populations
CBSE Class 12 Biology HOTs Organism And Population
Chapter 15 Biodiversity and Conservation
CBSE Class 12 Biology HOTs Biodiversity And Conservation
Chapter 16 Environmental Issues
CBSE Class 12 Biology HOTs Environmental Issues

HOTS for Biodiversity Biology Class 12

Expert teachers of studiestoday have referred to NCERT book for Class 12 Biology to develop the Biology Class 12 HOTS. If you download HOTS with answers for the above chapter you will get higher and better marks in Class 12 test and exams in the current year as you will be able to have stronger understanding of all concepts. High Order Thinking Skills questions practice of Biology and its study material will help students to have stronger understanding of all concepts and also make them expert on all critical topics. You can easily download and save all HOTS for Class 12 Biology also from www.studiestoday.com without paying anything in Pdf format. After solving the questions given in the HOTS which have been developed as per latest course books also refer to the NCERT solutions for Class 12 Biology designed by our teachers. We have also provided lot of MCQ questions for Class 12 Biology in the HOTS so that you can solve questions relating to all topics given in each chapter. After solving these you should also refer to Class 12 Biology MCQ Test for the same chapter

Where can I download latest CBSE HOTS for Class 12 Biology Biodiversity

You can download the CBSE HOTS for Class 12 Biology Biodiversity for latest session from StudiesToday.com

Are the Class 12 Biology Biodiversity HOTS available for the latest session

Yes, the HOTS issued by CBSE for Class 12 Biology Biodiversity have been made available here for latest academic session

What does HOTS stand for in Class 12 Biology Biodiversity

HOTS stands for "Higher Order Thinking Skills" in Biodiversity Class 12 Biology. It refers to questions that require critical thinking, analysis, and application of knowledge

How can I improve my HOTS in Class 12 Biology Biodiversity

Regular revision of HOTS given on studiestoday for Class 12 subject Biology Biodiversity can help you to score better marks in exams

Are HOTS questions important for Biodiversity Class 12 Biology exams

Yes, HOTS questions are important for Biodiversity Class 12 Biology exams as it helps to assess your ability to think critically, apply concepts, and display understanding of the subject.