FORESTRY
PLANT AND WOOD ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The circles created by the alternating summer and spring wood are called ____
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year rings
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circus rings
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spring rings
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annual rings
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Explanation:
Detailed explanation-1: -The alternation of spring wood and autumn wood in a concentric circle on the trunk is the annual ring. If a plant is young, the stem is young as well. The vascular cambium is present as a single layer at this point. As the stem grows, the complete ring is shaped, called the cambial ring.
Detailed explanation-2: -The cambium cells on the inside become the xylem, a system of tiny tubelike cells that carry the tree’s water supply. These xylem layers give us the annual rings. As spring begins, new cells are added quickly, and the tree increases in diameter.
Detailed explanation-3: -The annual rings are formed by secondary xylem because the growth in spring and autumn seasons forms spring and autumn wood.
There is 1 question to complete.