NEETBiologyAnimal KingdomMCQ+4 / −1
Select the incorrect statements with respect to Cyclostomes:
(a) They lack scales and paired fins.
(b) They have circular mouth with jaws.
(c) They bear 6-15 pairs of gills.
(d) They migrate to deep sea for spawning.
Choose the most appropriate answer from the options given below:
- A(a) and (d) only
- B(a) and (b) only
- C(b) and (c) only
- D(b) and (d) only
View written solutionFree
Correct answer: D
Option (d) is the correct answer because statement (b) is false as cyclostomes have a circular mouth without jaws and statement (d) is false as they migrate from marine water to fresh water for spawning. Statements (a) and (c) are correct for cyclostomes as they have 6-15 pairs of gills and body is divoid of scales and paired fins.
More from Animal Kingdom
- Exoskeleton of arthropods is composed of:2022 · MCQ
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : All vertebrates are chordates but all chordates are not vertebrates. Reason (R) : Notochord is replaced by vertebral…2022 · MCQ
- Match the following : Choose the correct answer from the options given below. Includes table2021 · MCQ
- Read the following statements (1) Metagenesis is observed in Helminths. (2) Echinoderms are triploblastic and coelomate animals. (3) Round worms have organ-system level of body organization. (4) Comb plates present in ctenophores help in…2021 · MCQ
- Match List-I with List-II. Choose the correct answer from the options given below. Includes table2021 · MCQ
- Which one of the following organisms bears hollow and pneumatic long bones?2021 · MCQ
- Bilaterally symmetrical and acoelomate animals are exemplified by2020 · MCQ
- Which of the following statements are true for the phylum-Chordata (i) In Urochordata notochord extends from head to tail and it is present throughout their life. (ii) In Vertebrata notochord is present during the embryonic period only.…2020 · MCQ