Which of the following assists in locomotion?
Correct answer: D. Posterior sucker in Hirudinaria
- A. Trichocyst in Paramecium
- B. Pedicellariae of star fish
- C. Clitellum in Pheretima
- D. Posterior sucker in Hirudinaria
Explanation
The looping or crawling movement in Hirudinaria is performed with the help of muscles and suckers which serve for attachment.
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About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
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