Sapwood is formed from_____________?
Correct answer: B. Secondary xylem
- A. Primary xylem
- B. Secondary xylem
- C. Primary phloem
- D. Secondary phloem
Explanation
Sapwood is the younger, outer part of wood formed by secondary xylem, and it conducts water and minerals from the roots. Students may choose primary xylem because both tissues conduct water, but primary xylem is formed during primary growth and is not what is generally called sapwood.
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