BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 21, Problem 4SA
Summary Introduction
Introduction:
Plants are multicellular, photosynthetic eukaryotes. These are evolved from unicellular alga which had a photosynthetic pigment called chlorophyll. The plant kingdom can be divided into five divisions: thallophytes,
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Club mosses, horsetails, and ferns are_______ plants. a. multicelled aquatic c. seedless vascular b. nonvascular seed d. seed-bearing vascular
Which 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 seed
Match the terms appropriately. ___ ovule a. gamete-producing body ___ cuticle b. spore-producing body ___ gametophyte c. where eggs form ___ sporophyte d. underground stem ___ fruit e. mature ovary ___ endosperm f. nutritive tissue in seed ___ rhizome g. where fern spores form ___ sorus h. secreted waxy layer
Chapter 21 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 21 - The first plants were_________. a. ferns c....Ch. 21 - Which of the following statements is false? a....Ch. 21 - In bryophytes, eggs are fertilized in a chamber on...Ch. 21 - Prob. 4SACh. 21 - Coal consists primarily of compressed remains of...Ch. 21 - Prob. 6SACh. 21 - Prob. 7SACh. 21 - Prob. 8SACh. 21 - Only angiosperms produce_______. a. pollen c....Ch. 21 - The _______do not have xylem or phloem. a. mosses...
Ch. 21 - Prob. 11SACh. 21 - Prob. 12SACh. 21 - Prob. 13SACh. 21 - Prob. 14SACh. 21 - Prob. 15SACh. 21 - Early botanists admired ferns but found their life...Ch. 21 - In animals, meiosis of germ cells produces...Ch. 21 - In most plants the largest, longest-lived body is...Ch. 21 - Consider a cherry pit, which is a seed with a...Ch. 21 - Suppose you wanted to make a science fiction film...
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- Which of the following statements is false? a. Ferns produce seeds inside sori. b. Conifers do not produce fruits. c. Both gymnosperms and angiosperms produce pollen. d. Only angiosperms produce flowersarrow_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_forwardThe gametophytes of ferns_____ . a. are photosynthetic c. are diploid b. produce spores d. are dependent on the in sori sporophyte for nutritionarrow_forward
- Family Clusiaceae A. Leaf type:____ B. Flower characteristics:____ C. Seed morphology:____ Family Dipterocarpaceae A. Plant habit:_____ B. Seed morphology:____arrow_forwardYou find and undescribed plant. You observe that the plant has a sporophyte that grows from a larger, longer lived gametophyte. The plant produces spores as its primary mode of dispersal. You conclude that the plant is a _______. A. seedless vascular plant B. nonvascular plant C. gymnosperm D. fernarrow_forwardIII. Gymnosperms - have seeds and vascular tissue (Chapter 18) A. Zamia - live specimen and Figure 18-35 1. To what Phylum does this plant belong? 2. What is unique about where this plant grows? 3. One of the common names for cycads is sago palm. What is one of the major differences between the group that Zamia belongs to and true palms? 4. How is Zamia pollinated?arrow_forward
- The seed coat forms from the______ . a. integuments c. endosperm b. coleoptile d. sepalsarrow_forwardWhat separates the gymnosperms from other seed plants?a. a vascular systemb. wind dispersion of pollenc. ovules not completely covered by the sporophyte at the time of pollinationd. fruits and flowersarrow_forwardStem regions at which leaves are attached are called ________. a. trichomes b. lenticels c. nodes d. internodesarrow_forward
- All of the vascular bundles inside a typical______ are arranged in a ring. a. monocot stem c. monocot root b. eudicot stem d. eudicot rootarrow_forwardO C. angiosperm D. gymnosperm 3. Write the sequence (order) of how a plant seed is dis (scattered)? Use transition words first, next, and then to seed being dispersed. * Your answer 4. Which of the following plants produce spores? A. angiosperms B. gymnosperms C. seedless vascular plants D. vascular plants with flowers 5. Why are many fruit plants trees?*arrow_forwardThe alternation of generations life cycle applies to gymosperms in that: A. the gametophyte stage is reduced B. the sporophyte stage is reduced C. the gametes are produced via meiosis D. the spores are produced via meiosisarrow_forward
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