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 3TYU
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 nuclei
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The immature male gametophytes of pine are called (a) ovules (b) stamens (c) seed cones (d) pollen grains (e) polar nuclei
14. The embryonic stem in a seed is called the
(a) radicle.
(b) hypocotyl.
(c) seed coat.
(d) endosperm.
15. Pollen contains
(a) male gametes.
(b) female gametes.
(c) fruits.
(d) a stigma.
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 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_forwardCallase enzyme which dissolves callose of pollen tetrads to separate four pollens is provided by: (a) pollens (b) tapetum (c) middle layers (d) endothecium.arrow_forwardWhere in an angiosperm would you finda megasporangium?(A) in the style of a flower(B) enclosed in the stigma of a flower(C) within an ovule contained within an ovaryof a flower(D) packed into pollen sacs within the anthers found on astamenarrow_forward
- 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 independentgametophytearrow_forwardf. The mature female gametophyte is called a(n) (A) embryo sac (B) nucellus (C) megasporangium (D) endosperm (E) ovulearrow_forwardTest 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_forward
- The anther contains:(a) Sepals(b) Ovules(c) Carpel(d) Pollen grains.arrow_forwardThe part of gynoecium that determines the compatible nature of pollen is: (a) stigma (b) style (c) ovary (d) synergidsarrow_forward(D) seeds3. With respect to angiosperms, which of the followingis incorrectly paired with its chromosome count?(A) egg—n(B) megaspore—2n(C) microspore—n(D) zygote—2narrow_forward
- 11. The scales of pine cones are (a) always green. (b) modified roots. (c) modified leaves. (d) modified stems. 12. Plants that make flowers are called (a) gymnosperms. (b) byrophytes. (c) gametophytes. (d) angiosperms. 13. The class of plants that has vascular tissue and reproduces with spores is the (a) clubmosses. (b) liverworts. (c) flowering plants. (d) conifers. 14. The embryonic stem in a seed is called the (a) radicle. (b) hypocotyl. (c) seed cont. (d) endosperm. 15. Pollen contains (a) male gametes. (b) female gametes. (c) fruits. (d) a stigma.arrow_forwardThe stamens represent: (a) microsporangia (b) male gametophyte (c) male gametes (d) microsporophylls.arrow_forwardTrue or false. 1.) The ovary becomes the seed when matures 2.) Pollination is the transfer of pollen grains from the stamen to the stigma 3.) Double fertilization in plants produces two zygotes. 4.) The anther contains the female sex cells of the plants. 5.) Epigeal germination occurs when the cotyledon remains below the ground.arrow_forward
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