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One example of animals having a single o...

One example of animals having a single opening to the outside that serves both as mouth as well as anus is

A

Octopus

B

Asterias

C

Ascidia

D

Fasciola

Text Solution

Verified by Experts

The correct Answer is:
D
Fasciola hepatica (sheep liver fluke) belongs to phylum-Platyhelminthes.
These worms have incomplete alimentary canal, there is a single opening for both ingestion and egestion. This is also called as blind sac body plan.
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-ANIMAL KINGDOM-EXERCISE
  1. In which one of the following, the genus name, its two characters and ...

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  2. What will you look for to identify the sex of the following

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  3. One example of animals having a single opening to the outside that ser...

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  4. Which one of the following statements about all the four of Spongilla...

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  5. Which one of the following kinds of animals are triploblastic

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  6. Which one of the following statements about certain given animals is c...

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  7. Which one of the following groups of animals is bilaterally symmetrica...

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  8. Which one of the following pairs of animals comprises "Jawless fishes"

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  9. If a live earthworm is pricked with a needle on its outer surface with...

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  10. Which one of the following groups of three animals is correctly matche...

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  11. Which one of the following is the true description about an animal con...

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  12. Ascaris is characterized by

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  13. Which one of the following is NOT a characteristic of phylum Annelida

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  14. Earthworms have no skeleton but during burrowing, the anterior end bec...

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  15. Which one of the following in birds, indicated their reptilian ancestr...

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  16. Which one of the following phyla is correctly matched with its two gen...

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  17. What is common between parrot, platypus and kangaroo ?

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  18. Which one of the following is a matching pair of a body feature and th...

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  19. Which of the following pairs are correctly matched ? {:(,"Animals",,...

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  20. What is true about nereis, scorpion, cockroac and silver fish?

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