NEET-UG Biology · Class 11
Basis of classification - symmetry, coelom and germ layers — NEET & JEE Questions
Basis of classification - symmetry, coelom and germ layers is a topic in Animal Kingdom, a Class 11 Biology chapter of the NEET-UG syllabus. TestBudy holds 18 published NEET-UG questions on Basis of classification - symmetry, coelom and germ layers, each with the marking scheme of the real paper.
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Basis of classification - symmetry, coelom and germ layers MCQs with solutions
10 of the 18 published questions on this topic, exactly as they appear in a test. Answers and worked solutions come with your result rather than on this page.
An animal whose body can be divided into two equal halves in only one plane shows
- A. bilateral symmetry
- B. radial symmetry
- C. asymmetry
- D. spherical symmetry only
An animal is triploblastic, bilaterally symmetrical and has a body cavity that is not completely lined by mesoderm. Which body-plan term best describes its cavity?
- A. Acoelomate
- B. Pseudocoelomate
- C. Coelomate
- D. Diploblastic
A diploblastic animal develops primarily from
- A. two germ layers, ectoderm and endoderm
- B. three germ layers including mesoderm
- C. one germ layer only
- D. four embryonic germ layers
A true coelom is a body cavity that is
- A. completely lined by mesoderm
- B. not lined by mesoderm at all
- C. identical to the digestive tract lumen
- D. present only in diploblastic animals
Select the incorrect statements from the following: A. Digestive system in Platyhelminthes is incomplete. B. Bilateral symmetry is a characteristic feature of adult Echinoderms. C. Pseudocoelom is possessed by Aschelminthes. D. Notochord is persistent throughout life in the class Chondrichthyes. E. Members of class Reptilia maintain a constant body temperature. Choose the answer from the options given below:
- A. A and C only
- B. B and E only
- C. C and D only
- D. B and D only
Open Circulatory system is present in :
- A. Palaemon, Nereis, Balanoglossus
- B. Hirudinaria, Bombyx, Salpa
- C. Anopheles, Limax, Limulus
- D. Pheretima, Musca, Pila
Which of the following pairs is an incorrect match?
- A. Annelids and arthropods-Bilateral symmetry
- B. Sponges-Acoelomates
- C. Coelenterates and Ctenophores-Radial symmetry
- D. Platyhelminthes-Diploblastic organisation
Match List I with List II: List - I List - II A. Pleurobrachia I. Mollusca B. Radula II. Ctenophora C. Stomochord III. Osteichthyes D. Air bladder IV. Hemichordata Choose the correct answer from the options given below :
- A. A-IV, B-II, C-III, D-I
- B. A-II, B-I, C-IV, D-III
- C. A-II, B-IV, C-I, D-III
- D. A-IV, B-III, C-II, D-I
Consider the following statements : A. Annelids are true coelomates B. Poriferans are pseudocoelomates C. Aschelminthes are acoelomates D. Platyhelminthes are pseudocoelomates Choose the correct answer from the options given below :
- A. B only
- B. A only
- C. C only
- D. D only
The following are the statements about non-chordates: A. Pharynx is perforated by gill slits. B. Notochord is absent. C. Central nervous system is dorsal. D. Heart is dorsal if present. E. Post anal tail is absent. Choose the most appropriate answer from the options given below:
- A. A & C only
- B. A, B & D only
- C. B, D & E only
- D. B, C & D only
Common mistakes in Basis of classification - symmetry, coelom and germ layers
Recorded against questions in this topic that are not shown above, so none of these points at an answer you can see on this page.
- Uses the presence of any plane of symmetry to label the animal bilateral.
- Calls any body cavity a true coelom.
- Interchanges absence of a cavity, pseudocoel and true coelom.
- Uses one criterion such as symmetry and ignores germ layers and coelom.
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