11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil கேடில் விழுச்செல்வம் - உரைநடை - தமிழகக் கல்வி வரலாறு Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set B
Published on: 13/05/2022
QB365 provides detailed and simple solution for every book back questions in class 11 Biology subject.It will helps to get more idea about question pattern in every book back questions with solution.
latest Book back QuestionsDownload Tamil Nadu 11th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Biology Test1.
List the unique features of bird's endoskeleton.
2.
Which of the chordate characteristics do tunicates retain as adults?
3.
Choose the term that does not belong in the following group and explain why it does not belong?
Notochord, cephalisation, dorsal nerve cord and radial symmetry.
4.
In which phyla is the larva trochopore found?
5.
1.
(i) Feathered vertebrates like birds have endoskeleton.
(ii) Flying birds have air filled hollow bones due to extension of air sacs of lungs. These bones are called as pneumatic bones.
(iii) In flying birds bones are very much demineralised.
(iv) In flying birds striated flight muscles well attached with carina of sternum.
(v) While in flightless birds bones are hard, compact and not filled by air but striated muscles are well attached to bones for leading, running and walking.
2.
(i) Alimentary canal is complete.
(ii) The heart is ventral.
(iii) Nerve cord is dorsal.
(iv) A dorsal ganglion is present in adults.
(v) Presence of notochord in tail region.
3.
(i) Invertebrates do not have notochord and presence of notochord is the unique feature of chordates.
(ii) Cephalisation indicates the distinct head in animals
Eg: Arthropods to chordates.
(iii) dorsal nerve cord arises in chordates behind the alimentary canal.
Eg: Hemichordates and chordates but ventral nerve cord arises in non chordates infront of the alimentary canal.
Eg: Annelidans to Echinoderms.
(iv) Radial symmetry is commonly found in coelenterates or cnidarians and in most of animals of other phyla.
4.
(i) The larva trochophore belongs to the phylum annelida.
(ii) In the class Polychaetae of phylum annelida the fertilization is internal and the development is indirect due to the presence of larva trochophore.
5.
11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set B
Tamilnadu Stateboard 11th Standard Subjects
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Economics
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Computer Science
Physics
Chemistry
Maths
Biology
Economics
Physics
Chemistry
History
Business Maths and Statistics
Computer Science
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History
Computer Technology
Commerce
Computer Applications
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