Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 28.1, Problem 1BC
Refer back to Figure 25.4 to see the life cycle ofa typical
25.15 to see an
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Use examples from Figure 30.7 to describe how various gymnosperms are similar yet distinctive.
Use examples from Figure 30.7 to describe how variousgymnosperms are similar yet distinctive.
The classification of the seed plants has varied. If a person groups all seed plants together in one large Division Spermatophyta, then they have two classes—the class with naked seeds and the class , plants with carpels. On the other hand, many people (and this book) use four divisions, not one. List the three divisions of “gymnosperms” and the one division of flowering plants.
Chapter 28 Solutions
Principles of Biology
Ch. 28.1 - Refer back to Figure 25.4 to see the life cycle...Ch. 28.1 - Prob. 1TYKCh. 28.1 - Prob. 2TYKCh. 28.2 - Prob. 1CCCh. 28.2 - Prob. 2CCCh. 28.2 - Prob. 1TYKCh. 28.2 - Prob. 2TYKCh. 28.3 - Prob. 1CCCh. 28.3 - Prob. 2CCCh. 28.3 - Prob. 3CC
Ch. 28.3 - Prob. 1TYKCh. 28.3 - Prob. 2TYKCh. 28.4 - Prob. 1TYKCh. 28.4 - Prob. 2TYKCh. 28.4 - Prob. 1CCCh. 28 - Where would you look to find the gametophyte...Ch. 28 - Prob. 2TYCh. 28 - Prob. 3TYCh. 28 - Prob. 4TYCh. 28 - Prob. 5TYCh. 28 - Prob. 6TYCh. 28 - Prob. 7TYCh. 28 - Prob. 8TYCh. 28 - Prob. 1CCQCh. 28 - Prob. 2CCQCh. 28 - Prob. 3CCQCh. 28 - Prob. 1CBQCh. 28 - Prob. 2CBQ
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- Which of the following traits characterizes gymnosperms? a. The plants carry exposed seeds on modified leaves. b. Reproductive structures are located in a flower. c. After fertilization, the ovary thickens and forms a fruit. d. The gametophyte is longest phase of the life cycle.arrow_forwardFigure 25.6 Which of the following statements about plant divisions is false? Lycophytes and pterophytes are seedless vascular plants. All vascular plants produce seeds. All non-vascular embryophytes are bryophytes. Seed plants include angiosperms and gym nosperms.arrow_forwardIn an angiosperm life cycle, sexual reproduction includes: meiosis within the male gametophyte to produce sperm. meiosis within the female gametophyte to produce eggs. meiosis within the ovary to produce megaspores. fertilization leading to development of microspores. fertilization leading to development of megaspores.arrow_forward
- How would you classify a plant with the following characteristics: 50 m tall, thin flat leaves, deep root system, and produces long brown cones. Answers: bryophyte gametophyte gymnosperm angiosperm sporophyte Please explain which one is the correct answer.arrow_forwardWhich of the following incorrectly pairs a sporophyte embryo with its food source? * A. Moss embryo-archegonium and gametophyte plant B. Fern embryo-female sporophyte surrounding archegonium C. Pine embryo-female gametophyte tissue in nucellus D. Corn embryo-3N endosperm tissue in seedarrow_forwardIn a paragraph or two, explain the life cycle of gymnosperms. Be sure to point out the specific unique life cycle adaptations gymnosperms have evolved, and use correct terminology.arrow_forward
- Angiosperms ( flower bearing ) plants developed after gymnosperms ( cone bearing ) plants during the Mesozoic era Which of the following is a benefit to plants developing the ability to have flowers over cones ? ANSWER CHOICES ARE IN THE PHOTO. thanks.arrow_forwardThe main difference between the life cycle of mosses versus the gymnosperms is: -in moss the dominant life cycle stage is the gametophyte, whereas in gymnosperms the dominant life cycle stage is the sporophyte. -moss sporophytes are photosynthetic and gymnosperm sporophytes are not. -gymnosperms undergo the alternation of generations and mosses do not. -mosses only have one multicellular life cycle stage, whereas gymnosperms have two.arrow_forward1. Of the plant groups included in Figure 1-1, which taxes have seeds? 2. Are the angiosperms more closely related to the bryophytes or the gymnosperms? 3. Explain your answer to question #2 4. Circle the node in Figure 1-1 that indicates the most recent common ancestor of gymnosperms and angiosperms. 5. List the characters that differentiate monocots and eudicots ( two groups of angiosperms) as seperate branches on the phylogenetic tree. In addition, give several examples of each.arrow_forward
- The following structures are found on the underside of fern leaves and contain sporangia: a. sori b. rhizomes c. megaphylls d. microphyllsarrow_forwardCorn develops from a seedling with a single cotyledon, displays parallel veins on its leaves, and produces monosulcate pollen. It is most likely:a. a gymnospermb. a monocotc. a eudicotd. a basal angiospermarrow_forwardIllustrate (draw) and label : (a). A mature sporophyte, and male and female gametophytes of : i) a fern (gymnosperm) (b) A frondarrow_forward
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