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Recent biochemical evidence indicated th...

Recent biochemical evidence indicated that cnidarians , as well as sponges , might have evolved from protists quite independently from the animals . Which of the following also sugggests a separate origin ?

A

cnidarians are unsegmented

B

cnidarians have no nervous tissue

C

cnidarians are radially symmetrical

D

cnidarians have gastrovascular cavity

Text Solution

Verified by Experts

The correct Answer is:
C
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ARIHANT NEET-ANIMALIA -I (LOWER INVERTEBRATES)-CHAPTER EXERCISES (Taking it together) Assorted Questions of the Chapter for Advanced Level Practise
  1. Which one of the following statement about all four of Spogilla , leec...

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  2. Cnidarians exhibits two basic body forms called polyp and medusa. The ...

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  3. Recent biochemical evidence indicated that cnidarians , as well as spo...

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  4. Hydra/Obelia is

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  5. If a Hydra is cut into two parts

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  6. Choose the false statements .

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  7. Identify and tick the option which is incorrect feature of medusae.

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  8. In the life history of Aurelia, the correct chronological sequence of ...

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  9. Which of the following is true ?

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  10. Which of the following statements is not true ?

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  11. Which of the following statements is incorrect about ctenophora ?

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  12. Nuda and Beroe are members of class- Nuda of phylum -ctenphora . The s...

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  13. Among the statements given below find ou which one is not true about P...

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  14. A proglottid is called gravid proglottid , when it has

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  15. What is correct about Taenia?

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  16. Unlike other trematodes , Schistosoma haematobium is dioecious and

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  17. What is true for Taenia solium ?

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  18. Which of the following is not a feature of phylum-Aschelminthes ?

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  19. Phasmids are

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  20. The two longitudinal excretory canals in roundworm are connected

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