Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 27, Problem 14SQ
Tree rings occur _______.
- a. when there are droughts during the time the rings form
- b. where environmental conditions influence xylem cell size
- c. if heartwood alternates with sapwood
- d. as epidermis replaces periderm
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The primary growth of a plant is due to the action of the ________. a. lateral meristem b. vascular cambium c. apical meristem d. cork cambium
What is wood?
a. Primary xylem that has accumulated inside a cylinder of vascular cambium
O b. Vascular cambium cells
C. Secondary xylem that has accumulated inside a cylinder of vascular cambium
d. Primary xylem that has accumulated outside a cylinder of vascular cambium
e. Secondary xylem that has accumulated outside a cylinder of vascular cambium
Looking at the anatomy of a tree trunk, the part that greatly contribute to the welfare of humans specially in construction is _.
a. heartwood
b. secondary xylem
c. secondary phloem
d. A and B
Chapter 27 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
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- Sieve tubes are part of_____ . a. cortex c. phloem b. mesophyll d. xylemarrow_forwardTracheids are part of ______. a. cortex c. phloem b. mesophyll d. xylemarrow_forwardwhich of the following concernig roost is incorrect? a. monocot roots exhibit primary grwoth and secondary growth b. dicots roots are called taproots c. dicots are called perennials because they exhibit secondary growth d. monoct roots form fibrous roots e. secondary growth causes the xylem and phloem to increase in diameter.arrow_forward
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