Earliest form of muscles is:
Correct answer: C. Smooth
- A. Cardiac
- B. Skeletal
- C. Smooth
- D. Striated
Explanation
Smooth muscles are found both in invertebrates and vertebrates while caradic and skeletal muscles are found only in vertebrates and are most developed.
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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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