Which one of the following living organisms completely lacks a cell wall?
Correct answer: B. Sea fan (Gorgonia)
- A. Cyanobacteria
- B. Sea fan (Gorgonia)
- C. Saccharomyces
- D. Blue green algae
Explanation
Gorgonia (sea fan) is an animal belonging to phylum Coelenterata. All animals lack a cell wall.
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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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