Which statement correctly describes the alimentary canal of Hydra?
Correct answer: D. All of these
- A. The alimentary canal is formed from the endodermal cells
- B. The alimentary canal has a single opening
- C. The alimentary canal is sac-like
- D. All of these
Explanation
All three statements correctly describe the alimentary canal of Hydra.
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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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