alleryIn the basis of animal classification, members of Porifera show which level of organisation?
ACellular level
BTissue level
COrgan level
DOrgan-system level
Answer & Solution
Correct answer: A. Cellular level
Poriferans are primitive metazoans in which the body is organised only at the cellular level.
True tissues and organs are absent, so tissue, organ, and organ-system levels do not apply.
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