Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 28, Problem 4TYU
Summary Introduction
Introduction: The transfer of pollen grains initiates the process of reproduction in the life cycle of a plant. The pollen grains are synthesized inside the male reproductive part of the plant (anther). The transfer of pollen grains on the female reproductive structure initiates the pollen tube formation through which pollen grains reach the egg cell and fertilization occurs.
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. WHAT IF? If flowers had shorter styles, pollen tubeswould more easily reach the embryo sac. Suggest anexplanation for why very long styles have evolved inmost flowering plants.
. MAKE CONNECTIONS Does the life cycle of humanshave any structures analogous to plant gametophytes?Explain your answer. (See Figures 13.5 and 13.6.)
GENERAL BIOLOGY 2
Q1 : How can plants reproduce naturally??
A. Using anthers
B. Using cuttings
C. Using runners
D. Using pollen
2. A female human's eggs are reproduced in the...??
A. Fallopian tube
B. Uterus
C. Ovaries
D. Vagina
3. What are the functions of ovaries in a flowering plant??
A. To produce female gametes
B. To produce male and female gametes
C. To produce male gametes
D. To produce stigma
Chapter 28 Solutions
Biology (MindTap Course List)
Ch. 28.1 - Prob. 1LOCh. 28.1 - Prob. 1CCh. 28.1 - Prob. 2CCh. 28.2 - Trace the steps in the life cycle of a pine and...Ch. 28.2 - Summarize the features that distinguish...Ch. 28.2 - Name and briefly describe the four phyla of...Ch. 28.2 - What is the dominant generation in the pine life...Ch. 28.2 - Prob. 2CCh. 28.2 - Prob. 3CCh. 28.2 - Prob. 4C
Ch. 28.3 - Summarize the features that distinguish flowering...Ch. 28.3 - Briefly explain the life cycle of a flowering...Ch. 28.3 - Contrast monocots and eudicots, the two largest...Ch. 28.3 - Prob. 8LOCh. 28.3 - How do nonreproductive adaptations of flowering...Ch. 28.3 - How does the flowering plant life cycle differ...Ch. 28.3 - What are the two major classes of flowering...Ch. 28.3 - Prob. 4CCh. 28.4 - Summarize the evolution of gymnosperms from...Ch. 28.4 - What features distinguish progymnosperms from seed...Ch. 28.4 - Describe the significant features of the oldest...Ch. 28.4 - Are monocots considered basal or core angiosperms?...Ch. 28 - Test Your Understanding Know and Comprehend 1....Ch. 28 - Test Your Understanding Know and Comprehend 2....Ch. 28 - Test Your Understanding Know and Comprehend 3. The...Ch. 28 - Prob. 4TYUCh. 28 - Test Your Understanding Know and Comprehend 5....Ch. 28 - Test Your Understanding Know and Comprehend 6....Ch. 28 - Test Your Understanding Know and Comprehend 7. A...Ch. 28 - Test Your Understanding Know and Comprehend 8. A...Ch. 28 - Test Your Understanding Know and Comprehend 9....Ch. 28 - Prob. 10TYUCh. 28 - Test Your Understanding Know and Comprehend 11....Ch. 28 - Prob. 12TYUCh. 28 - Test Your Understanding Apply and Analyze 13. You...Ch. 28 - VISUALIZE Sketch a seed of a gymnosperm and of a...Ch. 28 - CONNECT How do the life cycles of seedless plants...Ch. 28 - Prob. 16TYUCh. 28 - Test Your Understanding Evaluate and Synthesize...Ch. 28 - Test Your Understanding Evaluate and Synthesize...
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- Test Your Understanding Know and Comprehend 9. After fertilization, the______________ develop(s) into a fruit and the ______________ develop(s) into a seed. (a) ovary; ovule (b) polar nuclei; ovule (c) ovary; endosperm (d) ovule; ovary (e) ovule; polar nucleiarrow_forwardTest Your Understanding Know and Comprehend 3. The immature male gametophytes of pine are called (a) ovules (b) stamens (c) seed cones (d) pollen grains (e) polar nucleiarrow_forwardTest Your Understanding Know and Comprehend 1. Seed plants lack which of the following structure(s)? (a) ovules surrounded by integuments (b) microspores and megaspores (c) vascular tissues (d) a large, nutritionally independent sporophyte (e) a large, nutritionally independent gametophytearrow_forward
- Test Your Understanding Know and Comprehend 8. A flower that lacks stamens is both _______________ and _______________. (a) complete; imperfect (b) incomplete; perfect (c) complete; perfect (d) incomplete; imperfectarrow_forwardTest Your Understanding Apply and Analyze 13. You are given a plant that you have never seen before (see figure). Is it a gymnosperm or angiosperm? A monocot or eudicot? What are the features that helped you make these determinations?arrow_forwardTest Your Understanding Know and Comprehend 5. Motile sperm cells are found as vestiges in these two gymnosperm groups: (a) monocots, eudicots (b) gnetophytes, conifers (c) gnetophytes, flowering plants (d) cycads, conifers (e) cycads, ginkgoarrow_forward
- Test Your Understanding Evaluate and Synthesize 18. EVOLUTION LINK Where would you place the progymnosperms on Figure 28-2? Explain your reasoning. Figure 28-2 Gymnosperm and angiosperm evolution This cladogram shows a current hypothesis of phylogenetic relationships among living seed plants, based on structural evidence, molecular comparisons, and fossils. Relationships among extant gymnosperm clades and angiosperms remain controversial. The arrangement of the phyla shown here may change as future analyses help clarify relationships.arrow_forwardTest Your Understanding Know and Comprehend 11. This flowering plant may be the nearest living relative to the ancestor of all flowering plants, (a) Amborella (b) Archaeopteris (c) Gnetum (d) water lily (e) magnoliaarrow_forwardTest Your Understanding Evaluate and Synthesize 14. VISUALIZE construct a cladogram based on the following data. Mosses are plants with no vascular tissue. Horse-tails, ferns, gymnosperms (pines and other plants with naked seeds), and angiosperms (flowering plants) are all vascular plants. Seeds are absent in all but the gymnosperms and angiosperms. Angiosperms are the only seed plants with flowers. (Hint: To help you construct the cladogram, draw a simple table showing which characters are present in each group. See Fig. 23-9.) Figure 23-9 Constructing a cladogram using outgroup analysisarrow_forward
- Test Your Understanding Evaluate and Synthesize 17. EVOLUTION LINK Contrast the algae, mosses, ferns, gymnosperms, and angiosperms with respect to their dependence on water as a transport medium for reproductive cells. Suggest a hypothesis to explain how the differences might be adaptive to living on land.arrow_forwardMAKE CONNECTIONS What examples of plantreproduction are most similar to asexual reproductionin animals? (See Concept 38.2.)arrow_forwardQuestion:- Which of the following is FALSE about fruit? A. Mature ovary B. Protect seeds and aid in dispersal C. Exposes the seeds D. Produced by flowering plantsarrow_forward
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