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 27, Problem 8TYU
Know and Comprehend
8. The green, gametangia-bearing moss plant (a) is the haploid gametophyte generation (b) is the diploid sporophyte generation (c) is called a protonema (d) contains cells with single large chloroplasts (e) b and c
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The green, gametangia-bearing moss plant (a) is the haploid gametophyte generation (b) is the diploid sporophyte generation (c) is called a protonema (d) contains cells with single large chloroplasts (e) b and c
Postlab: Bryophytes, Seedless Vascular Plants &
Gymnosperms
1. What is the conspicuous form of the bryophytes? Is this form haploid or diploid?
2. The part that produces the male gametes is called the....?
3. The part that produces the female gametes is called the...
4. Spores are produced by which cell division process?
5. What is the conspicuous form of the seedless vascular plants? Is it haploid or diploid?
6. What are microspores? Where are they produced in gymnosperms?
7. Megaspores give rise to which structure in gymnosperms?
8. How are most gymnosperms pollinate
d?
9.
In gymnosperms, the material that nourishes the embryo derives from what tissue?
10. How can you visually differentiate a male from a female cone in pines?
2.There are 10 flowers in plant of crotalaria, in each microsporangium there are 30 microspore mother cells,how many pollen grains are formed from that plant(A) 4,000 (B) 10,000(C) 24000 (D) 48,000
Chapter 27 Solutions
Biology (MindTap Course List)
Ch. 27.1 - Discuss some environmental challenges of living on...Ch. 27.1 - Name the green algal group from which plants are...Ch. 27.1 - Prob. 1CCh. 27.1 - Prob. 2CCh. 27.1 - Prob. 3CCh. 27.1 - Prob. 4CCh. 27.2 - Summarize the features that distinguish bryophytes...Ch. 27.2 - Name and briefly describe the three phyla of...Ch. 27.2 - Describe the life cycle of mosses and compare...Ch. 27.2 - Prob. 1C
Ch. 27.2 - How are mosses, liverworts, and hornworts similar?...Ch. 27.3 - Discuss the features that distinguish seedless...Ch. 27.3 - Name and briefly describe the two phyla of...Ch. 27.3 - Describe the life cycle of ferns and compare their...Ch. 27.3 - Compare the generalized life cycles of homosporous...Ch. 27.3 - Prob. 1CCh. 27.3 - Prob. 2CCh. 27.3 - Which of the following are parts of the sporophyte...Ch. 27.3 - Why are whisk ferns and horsetails now classified...Ch. 27.3 - How does heterospory modify the plant life cycle?Ch. 27 - Plants probably descended from a group of green...Ch. 27 - Which of the following is not a characteristic of...Ch. 27 - In plant life cycles, (a) the first products of...Ch. 27 - The bryophytes (a) include mosses, liverworts, and...Ch. 27 - The waxy layer that covers aerial parts of plants...Ch. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - Know and Comprehend 8. The green,...Ch. 27 - Prob. 9TYUCh. 27 - Know and Comprehend 10. These plants have...Ch. 27 - Know and Comprehend 11. These plants have hollow,...Ch. 27 - Know and Comprehend 12. Which of the following...Ch. 27 - Apply and Analyze 13. VISUALIZE Draw a simple...Ch. 27 - Evaluate and Synthesize 14. EVOLUTION LINK How may...Ch. 27 - Evaluate and Synthesize 15. INTERPRET DATA...Ch. 27 - Evaluate and Synthesize 16. EVOLUTION LINK Where...
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- Test 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_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. MAKE CONNECTIONS Does the life cycle of humanshave any structures analogous to plant gametophytes?Explain your answer. (See Figures 13.5 and 13.6.)arrow_forward
- Test 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_forwardStomata (a) help prevent desiccation of plant tissues (b) transport water and minerals through plant tissues (c) allow gas exchange for photosynthesis (d) strengthen cell walls (e) produce male gametesarrow_forwardTest 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_forward
- The female gametophyte in flowering plants is also called the (a) polar nuclei (b) anther (c) embryo sac (d) endosperm (e) sporophyllarrow_forwardSeed 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 independentgametophytearrow_forwardTwo questionarrow_forward
- Growth of pollen tube towards embryo sac is (a) chemotropic (b) thigmotaxis (c) geotropic (d) none of thesearrow_forwardDiscuss Concepts Compare the size, anatomical complexity, and degree of independence of a Douglas fir female gametophyte and a dogwood female gametophyte. Which one is the most protected from the external environment? Which trend(s) in plant evolution does your work on this question bring to mind?arrow_forwardDiscuss Concepts Baobab trees (Adansonia spp.) store water in their trunks (stems) and, although the trees have leaves, considerable photosynthesis also occurs in the trunks. Cacti too have water-storing, photosynthetic stems. In terms of evolutionary adaptation, what does this information suggest about cacti and baobabs?arrow_forward
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