In the classification of kingdom animalia, poriferans are included in subkingdom parazoa because they
Correct answer: D. show cellular grade of organisation.
- A. are found in water.
- B. have the ability to regenerate.
- C. demonstrate division of labour.
- D. show cellular grade of organisation.
Explanation
Poriferans are classified into kingdom parazoa because they lack formation of true tissues and have cellular grade of organizations. So option D is correct. Aquatic habitat, regenerative capability and division of labour is not the basis of this classification.
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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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