In an Annual Ring,the First-Formed Cells in the Spring Are

question 20

Essay

In an annual ring,the first-formed cells in the spring are large;the ring looks light because you are seeing open cavities of the tracheids (and vessel elements).The darker part of the annual ring is wood formed in the summer,and the diameter of the cells formed is smaller.Which kind of wood is probably stronger? Why? Where is the fall and winter wood?

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