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Biology: The Unity and Diversity o...
Biology: The Unity and Diversity o...
Oscar and Lucinda meet in a tropical rain forest and fall in love, and he carves their initials into the bark of a tree. They never do get together, though. Ten years later, still heartbroken, Oscar searches for the tree. Given what you know about primary and secondary growth, will he find the carved initials higher relative to ground level? If he goes berserk and chops down the tree, what kinds of growth rings will he see?
To explain: Whether Person O finds the carved initials higher relative to ground level after ten years.
Concept introduction: The young plant grows primarily by lengthening, and older plant grows by lengthening and thickening. The primary growth originates at the terminal bud, which consists of the apical meristem. The cell division that occurs in the apical meristem pushes the dividing cells toward the base of the shoot, and they will differentiate. The lateral meristem runs length wise through the stems and roots, and they give rise to woody secondary growth.
Person O and Person L carved their initials on the bark of a tree. After ten years, he will be able to see the initials that he carved. The initials that he carved on the tree will be at the same height after ten years...
To explain: The kinds of growth rings Person O sees when he chops down the tree.
Concept introduction: The young plant grows primarily by lengthening, and older plant grows by lengthening and thickening. The primary growth originates at the terminal bud, which consists of the apical meristem. The cell division that occurs in the apical meristem pushes the dividing cells toward the base of the shoot, and they will differentiate. The lateral meristem runs length wise through the stems and roots, and they give rise to woody secondary growth.
Chapter 27 Solutions
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