A multicellular organism benefits from having DIFFERENT specialised tissues primarily because:
ASpecialisation looks complex
BAll cells must look the same
CSpecialisation makes growth easier
DDifferent functions (protection, movement, signal conduction, transport) require structurally different cells; specialisation = division of labour at the cellular level, making the whole organism more efficient
Answer & Solution
Correct answer: D. Different functions (protection, movement, signal conduction, transport) require structurally different cells; specialisation = division of labour at the cellular level, making the whole organism more efficient
In a multicellular organism, no single cell type can do everything well. Different tissues specialise: epithelium protects, muscle contracts, nerve conducts impulses, xylem transports water, phloem transports sugars. This division of labour is more efficient than every cell being a generalist — the same principle that makes specialised industries more productive than self-sufficient villages.
Related questions
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