BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Question
Chapter 25, Problem 2CT
Summary Introduction
To explain:
The reasons for eudicot trees being wider at the base than at the top.
Introduction:
The eudicots are the flowering plants in which seeds have two seed leaves. The flower parts in eudicots are found in multiples of four or five. In the eudicot stem, these bundles are arranged in a pattern of a ring. In the eudicot roots, the xylem is located at the center of the root but, the phloem is arranged outside the xylem.
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Chapter 25 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
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- How are pine leaves different from those of broad-leaved trees such as maples and oaks?arrow_forwardDo monocots undergo secondary thickening? Why?arrow_forwardIn a cross-section of a tree, where are the oldest growth rings—in the outer region or nearer the pith? Where is the oldest secondary phloem—near the outside of the tree or near the cambium?arrow_forward
- Why is the secondary xylem and phloem always to either side of the vascular cambium?arrow_forwardWhy can a monocot like an iris branch and increase its number of leaves? Is the fact that the shoot is a rhizome with adventitious roots important? Is water transported from one end of the shoot to the other?arrow_forwardIn comparison with stems, roots secondary xylem exhibits..... 1. wider vessels 2. primary xylem outside of the secondary xylem 3. greater lignification 4. more derived parenchyma cells 5. less amount of parenchymaarrow_forward
- Why is it that even if you put the newly germinated seed in an inverse position (roots above), the roots will find its way back to the ground?arrow_forwardWhat would happen if you removed the shoot apical meristem of a plant?arrow_forwardIs there any advantage to a leaf in having palisade mesophyll on the upper half and spongy mesophyll on the lower half?arrow_forward
- Why does a layer of periderm offer only temporary protection? When the plant makes a new layer of cork cambium, does it make the new layer to the outer side of the failing periderm or to the inner side of it, deeper in thesecondary phloem?arrow_forwardIs xylem sap usually pulled or pushed up the plant?arrow_forwardFrom the outside of a tree to its center, which of the following is the correct order of appearance? 1. periderm 2. vascular cambium 3. sapwood 4. secondary phloem 5. cork cambium 6. heartwood 1-4-5-2-6-3 1-3-2-5-4-6 1-2-4-5-3-6 1-5-4-2-3-6 1-2-4-5-6-3arrow_forward
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