CBSE Class 12 Biology Worksheet Set I Solved

Read and download free pdf of CBSE Class 12 Biology Worksheet Set I Solved. Download printable Biology Class 12 Worksheets in pdf format, CBSE Class 12 Biology All Chapters Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Biology Class 12 Assignments and practice them daily to get better marks in tests and exams for Class 12. Free chapter wise worksheets with answers have been designed by Class 12 teachers as per latest examination pattern

All Chapters Biology Worksheet for Class 12

Class 12 Biology students should refer to the following printable worksheet in Pdf in Class 12. This test paper with questions and solutions for Class 12 Biology will be very useful for tests and exams and help you to score better marks

Class 12 Biology All Chapters Worksheet Pdf

1. Where does fertilisation occur in human reproduction? 
 
2. What is brood parasitism? 
 
3. What is parturition? How is it induced? 
 
4. How does temperature affect distribution of animals? Name two types based on their temperature tolerance.
 
5. Distinguish between the following:
(a) Hibernation and Aestivation (b) Ectotherms and Endotherms
 
6. Write down the chromosome pattern in human male and female. Who determines the sex of a child in human and how?
 
7. Define the following terms:
i] Allen's rule ii] competitive release iii] resource partitioning
 
8. Give reason
i] monarch butterfly survives from its predator
ii] Kangaroo rats can survive in the absence of an external source of water
iii] Small animals are rarely found in Polar Regions
 
9. What is age pyramid? Mention its types. State India belongs to which type of age pyramid. 
 
VALUE POINTS
 
1. Ampullary-Isthmus Junction 
 
2. One species lays eggs in the nest of another bird, lets the host incubate them.
E.g. Cuckoo lays eggs in the nest of a crow
 
3. processof delivery of the foetus/ foetal ejection reflex. 
 
4. Enzymes activity and therefore metabolic activities ,Eurythermal,stenothermal 
 
5. a) hibernation - winter sleep / Aestivation- summer sleep
b) ectotherms-COLD blooded endotherm- WARM blooded animals
 
6. human male - XY ; human female- XX Male
male produces two types of games i.e., X and Y / X carrying sperm fertilizes egg it is a female child/ Y carrying chromosome fertilizes egg cell it is male.
 
7. i]Allen’s rule states that those animals, e.g., mammals from colder climates generally have shorter ears and limbs to minimize heat loss."
ii]A species, whose distribution is restricted to a small geographical area because of the presence of a competitively superior species, is found to expand its distributional range dramatically when the competing species is experimentally removed"
iii]If two species compete for the same resource, they could avoid competition by choosing, for instance, different times for feeding or different foraging patterns. This is called resource partitioning"
 
8. i] The Monarch butterfly is highly distasteful to its predator (bird) because of a special chemical present in its body. Interestingly, the butterfly acquires this chemical during its caterpillar stage by feeding on a poisonous weed."
ii]Kangaroo rat is capable of meeting its entire water requirement through its internal fat oxidation in which water is a by -product. It has the ability to concentrate urine"
iii]Smaller animals tend to lose more body heat due to large surface area relative to their volume. Therefore, they have to spend more energy to generate body heat"
 
9. If the age distribution (per cent individuals of a given age or age group) is plotted for the population, the resulting structure is called an age pyramid expanding/stable/ declining expanding


Please click on below link to download CBSE Class 12 Biology Worksheet Set I Solved

More Study Material

CBSE Class 12 Biology All Chapters Worksheet

The above practice worksheet for All Chapters has been designed as per the current syllabus for Class 12 Biology released by CBSE. Students studying in Class 12 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 12 Biology on a daily basis. All the latest practice worksheets with solutions have been developed for Biology by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 12 Biology students to get all the latest study material free of cost.

Worksheet for Biology CBSE Class 12 All Chapters

Teachers of studiestoday have referred to the NCERT book for Class 12 Biology to develop the Biology Class 12 worksheet. If you download the practice worksheet for the above chapter daily, you will get better scores in Class 12 exams this year as you will have stronger concepts. Daily questions practice of Biology printable worksheet and its study material will help students to have a stronger understanding of all concepts and also make them experts on all scoring topics. You can easily download and save all revision Worksheets for Class 12 Biology also from www.studiestoday.com without paying anything in Pdf format. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 12 Biology designed by our teachers

All Chapters worksheet Biology CBSE Class 12

All practice paper sheet given above for Class 12 Biology have been made as per the latest syllabus and books issued for the current academic year. The students of Class 12 can be assured that the answers have been also provided by our teachers for all test paper of Biology so that you are able to solve the problems and then compare your answers with the solutions provided by us. We have also provided a lot of MCQ questions for Class 12 Biology in the worksheet so that you can solve questions relating to all topics given in each chapter. All study material for Class 12 Biology students have been given on studiestoday.

All Chapters CBSE Class 12 Biology Worksheet

Regular printable worksheet practice helps to gain more practice in solving questions to obtain a more comprehensive understanding of All Chapters concepts. Practice worksheets play an important role in developing an understanding of All Chapters in CBSE Class 12. Students can download and save or print all the printable worksheets, assignments, and practice sheets of the above chapter in Class 12 Biology in Pdf format from studiestoday. You can print or read them online on your computer or mobile or any other device. After solving these you should also refer to Class 12 Biology MCQ Test for the same chapter.

Worksheet for CBSE Biology Class 12 All Chapters

CBSE Class 12 Biology best textbooks have been used for writing the problems given in the above worksheet. If you have tests coming up then you should revise all concepts relating to All Chapters and then take out a print of the above practice sheet and attempt all problems. We have also provided a lot of other Worksheets for Class 12 Biology which you can use to further make yourself better in Biology

Where can I download latest CBSE Practice worksheets for Class 12 Biology All Chapters

You can download the CBSE Practice worksheets for Class 12 Biology All Chapters for the latest session from StudiesToday.com

Can I download the Practice worksheets of Class 12 Biology All Chapters in Pdf

Yes, you can click on the links above and download chapter-wise Practice worksheets in PDFs for Class 12 for Biology All Chapters

Are the Class 12 Biology All Chapters Practice worksheets available for the latest session

Yes, the Practice worksheets issued for All Chapters Class 12 Biology have been made available here for the latest academic session

How can I download the All Chapters Class 12 Biology Practice worksheets

You can easily access the links above and download the Class 12 Practice worksheets Biology for All Chapters

Is there any charge for the Practice worksheets for Class 12 Biology All Chapters

There is no charge for the Practice worksheets for Class 12 CBSE Biology All Chapters you can download everything free

How can I improve my scores by solving questions given in Practice worksheets in All Chapters Class 12 Biology

Regular revision of practice worksheets given on studiestoday for Class 12 subject Biology All Chapters can help you to score better marks in exams

Are there any websites that offer free Practice test papers for Class 12 Biology All Chapters

Yes, studiestoday.com provides all the latest Class 12 Biology All Chapters test practice sheets with answers based on the latest books for the current academic session

Can test sheet papers for All Chapters Class 12 Biology be accessed on mobile devices

Yes, studiestoday provides worksheets in Pdf for All Chapters Class 12 Biology in mobile-friendly format and can be accessed on smartphones and tablets.

Are practice worksheets for Class 12 Biology All Chapters available in multiple languages

Yes, practice worksheets for Class 12 Biology All Chapters are available in multiple languages, including English, Hindi