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Question
Annual rings are well seen in
Annual rings are well seen in
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Solution
The correct option is C Pinus wood
As woody plants grow in diameter a new layer of wood is produced each year by the cambium. This layer is called as annual ring or growth ring. In pines, the spring tracheids are larger than the summer tracheids. Because the summer tracheids are smaller and more dense, they appear as dark bands in a cross section of a log. Each concentric band of spring and summer tracheids is called as annual ring. By counting the rings (dark bands of summer xylem in pine wood), the age of a tree can be determined. So, the correct answer is 'Pinus wood'
As woody plants grow in diameter a new layer of wood is produced each year by the cambium. This layer is called as annual ring or growth ring. In pines, the spring tracheids are larger than the summer tracheids. Because the summer tracheids are smaller and more dense, they appear as dark bands in a cross section of a log. Each concentric band of spring and summer tracheids is called as annual ring. By counting the rings (dark bands of summer xylem in pine wood), the age of a tree can be determined.
So, the correct answer is 'Pinus wood'
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