Question:
Which one assists in locomotion?
Which one assists in locomotion?
Updated On: Mar 20, 2024
- Trichocysts in Paramecium
- Pedicellariae of star fish
- Clitellum in Pheretima
- Posterior sucker in Hirudinaria.
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The Correct Option is D
Solution and Explanation
The looping or crawling movement in Hirudinaria is performed with the help of muscles and suckers which serve for attachment. 125 (c): The beef tapeworm Taenia saginata is similar to the pork tapeworm Taenia solium, in structure and life history. It is the commonest tapeworm of man with a much greater incidence than that of T solium. Scolex bears four strong, rounded, adhesive suckers but lacks hooks and rostellum.
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Concepts Used:
Animal Kingdom
Animals are eukaryotic, multicellular species that belong to the Kingdom Animalia. Every animal has a distinct characteristic. They get energy either by feeding on plants or on other animals. There are millions of species that have been recognized, few shares similar characteristics while others vary drastically.
Kingdom Animalia comprises all animals. In the midst of the five kingdoms, the largest kingdom is the animal kingdom. Animals are multicellular eukaryotes. Though, like plants, they do not possess chlorophyll or a cell wall. Therefore, members of the animal kingdom indicate a heterotrophic mode of nutrition. Kingdom Animalia is further classified into ten different subphyla based on their body designs or differentiations.
The different phyla of the Kingdom Animalia are as follows:
- Porifera
- Coelenterata (Cnidaria)
- Platyhelminthes
- Nematoda
- Annelida
- Arthropoda
- Mollusca
- Echinodermata
- Hemichordata
- Chordata
Read More: Classification of Animal Kingdom