Vascular Cambium initially appears as actively dividing cells between?
Correct answer: D. Primary xylem and Primary phloem
- A. Primary Xylem and Seconday Xylem
- B. Primary xylem and Secondary phloem
- C. Secondary xylem and Secondary phloem
- D. Primary xylem and Primary phloem
Explanation
The correct option is D "Primary xylem and primary phloem". The "primary xylem and phloem" are conducting and supporting vascular tissues, and the vascular cambium is a lateral meristem that gives rise to the secondary vascular tissues, which constitute the secondary plant body. The vascular cambium is responsible for increasing the diameter of stems and roots and for forming woody 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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