A body cavity completely surrounded by tissue derived from the mesoderm that provides cushioning for internal organs is called
Correct answer: B. A coelom
- A. An archenteron
- B. A coelom
- C. A pseudocoelom
- D. A gastrovascular cavity
- E. A pharynx
Explanation
The coelom provides cushion as well as allowing for expansion and contraction of internal organs (such as the lungs and stomach). The pseudocoelom is not completely surrounded by tissue derived from the mesoderm.
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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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