Which cells do not form a layer and remain structurally separate?
Correct answer: C. Nerve cells
- A. Epithelial cells
- B. Muscle cells
- C. Nerve cells
- D. Gland cells
Explanation
Nerve cells are highly excitable cells specialized for impulse conduction. They originate from the neural plate of the embryonic ectoderm and serve as structural and functional units of nervous tissue.
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About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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