BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 29, Problem 3A
A major innovation of land plants is embryo protection. How is a moss embryo protected from desiccation?
a By the seed
b. By the antheridium
c. By the archegonium
d. By the lycophyll
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Chapter 29 Solutions
BIOLOGY
Ch. 29.1 - Explain the relationship between the different...Ch. 29.1 - Prob. 2LOCh. 29.1 - Prob. 3LOCh. 29.1 - Prob. 4LOCh. 29.2 - Describe adaptations of bryophytes for life on...Ch. 29.3 - Prob. 1LOCh. 29.3 - Evalute the signification of roots, stems, and...Ch. 29.4 - Prob. 1LOCh. 29.4 - Prob. 2LOCh. 29.5 - Prob. 1LO
Ch. 29.5 - Prob. 2LOCh. 29 - Compare the amount of time that passed between the...Ch. 29 - Explain why tracheophytes may have had a selective...Ch. 29 - Which of the following plant structures is NOT...Ch. 29 - Which of the following genera most likely directly...Ch. 29 - Which of the following would NOT be found in a...Ch. 29 - Prob. 4UCh. 29 - Evolutionary innovations that increase desiccation...Ch. 29 - Which of the following statements about the...Ch. 29 - Compare what happens to a spore mother cell as it...Ch. 29 - How could a plant without roots obtain sufficient...Ch. 29 - A major innovation of land plants is embryo...Ch. 29 - In comparing the Selaginella and Physcomitrella...Ch. 29 - Prob. 5ACh. 29 - Identify which of the following statements is...Ch. 29 - You have access to the sequenced genomes for moss...Ch. 29 - Would you expect the sporophyte generation of a...Ch. 29 - Imagine hypothetical moss and fern trees, each 10...
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- The waxy layer that covers aerial parts of plants is the (a) cuticle (b) archegonium (c) protonema (d) stoma (e) thallusarrow_forwardWhat adaptation do seed plants have in addition to the seed that is not found in seedless plants? a. gametophytes b. vascular tissue c. pollen d. chlorophyllarrow_forwardThe land plants are probably descendants of which of these groups? a. green algae b. red algae c. brown algae d. angiospermsarrow_forward
- The structure of the fern sporangium shown promotes spore dispersal by a ‘catapult’ mechanism. What is the driving force involved? A. Increased pressure within the sporangium B. Opening of the sporangium mouth C. Elastic rebound D. Water evaporation from the annulusarrow_forwardA botanist travels to an area that has experienced a long, severe drought. While examining the bryophytes in the area, he notices that many are in the same life-cycle stage. Which life-cycle stage should be the most common? a. zygote b. gametophyte c. sporophyte d. archegoniumarrow_forwardWhich of the following genera most likely directly gave rise to the land plants? a. Volvox b. Chlamydomonas c. Ulva d. Charaarrow_forward
- What adaptation do seed plants have in addition to the seed that is not found in seedless plants?a. gametophytesb. vascular tissuec. pollend. chlorophyllarrow_forwardWhich group of plants bears stomata only in the sporophyte generation? a. Chrysophyta b. Anthocerophyta c. Bryophyta d. Marchantiophyta Which of the following is not a characteristic that distinguishes gymnosperms and angiosperms from other plants? a. Pollen b. Dependent gametophytes c. Ovules d. Alternation of generations Which of these statements is an incorrect comparison of a pine cone and a flower in terms of structure and function? a. Pine cones and flowers both have gametophytes and modified leaves that produce spores. b. All of the statements are correct. c. Unlike pine cones, many flowers produce both pollen and ovules. d. Pine trees have separate pollen cons and ovulate cones while in flowers, pollen grains are produced by the anthers of stamens, and ovules are within the ovaries of carpels.arrow_forwardUse the fern life cycle to answer the following questions in detail and explain: a. Are spores produced by meiosis or mitosis? b. Are spores haploid or diploid? c. Is a small prothallus a gametophyte or sporophyte?arrow_forward
- Use the fern life cycle to answer the following questions in detail and explain: a. Does the heart-shaped prothallus produce gametes or spores? b. Does the zygote grow into a sporophyte or a gametophyte?arrow_forwardWhat two groups of plants produce seeds? O a. Gymonsperms and Angiosperms O b. Broyophytes and gymonsperms O C. Brophytes and angiosperms O d. Bryophytes and fernsarrow_forwardWhat is the ploidy of the following structures: gametophyte, seed, spore, sporophyte? a. 1n, 1n, 2n, 2n b. 1n, 2n, 1n, 2n c. 2n, 1n, 2n, 1n d. 2n, 2n, 1n, 1narrow_forward
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