Identify the wrong statement in context of heartwood.
Correct answer: B. It conducts water and minerals efficiently
- A. It is highly durable
- B. It conducts water and minerals efficiently
- C. It comprises dead elements with highly lignified walls
- D. Organic compounds are deposited in it
Explanation
(b): Heartwood is the nonfunctional part of secondary xylem, hence, it does not conduct water and minerals.
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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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