Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 29, Problem 4TYK
Summary Introduction
Introduction:
Double fertilization is a complex mechanism of fertilization. It involves the fusion of a female gametophyte and two male gametophytes. This sexual reproduction is the main feature of the
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Which of the following are found in gymnosperms, as well as in angiosperms?
a.
Fruits
b.
Seeds
c.
Cones
d.
Flowers
Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to:
A.
angiosperms
B.
gymnosperms
C.
monocotyledons
D.
dicotyledons
Which of the following statements describes a difference between gymnosperms and angiosperms?
a. Gymnosperms are nonvascular plants; angiosperms are vascular plants.
b. Gymnosperms are seed-bearing vascular plants; angiosperms are seedless vascular plants.
c. The seeds of gymnosperms are contained within a fruit; angiosperm seeds are "naked."
d. Gymnosperms are seedless vascular plants; angiosperms are seed-bearing vascular plants.
e. The seeds of gymnosperms are "naked"; angiosperm seeds are contained within a fruit.
Chapter 29 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 29.1 - What major reproductive adaptations facilitated...Ch. 29.1 - How did seeds, pollen, and pollination affect the...Ch. 29.2 - Why are gymnosperms called naked seed plants?Ch. 29.2 - Prob. 2SBCh. 29.2 - Summarize the steps of the pine life cycle.Ch. 29.3 - Prob. 1SBCh. 29.3 - Prob. 2SBCh. 29.4 - Prob. 1SBCh. 29.4 - Prob. 2SBCh. 29.5 - Name four major ways human societies rely on seed...
Ch. 29.5 - Prob. 2SBCh. 29 - Prob. 1TYKCh. 29 - Prob. 2TYKCh. 29 - Prob. 3TYKCh. 29 - Prob. 4TYKCh. 29 - Prob. 5TYKCh. 29 - Prob. 6TYKCh. 29 - Prob. 7TYKCh. 29 - Prob. 8TYKCh. 29 - Prob. 9TYKCh. 29 - Adaptations that correlate with the adaptive...Ch. 29 - Prob. 11TYKCh. 29 - Discuss Concepts Modern humans emerged about...Ch. 29 - Discuss Concepts Compare the size, anatomical...Ch. 29 - Prob. 14TYKCh. 29 - Discuss Concepts Working in the field, you...Ch. 29 - Prob. 16TYKCh. 29 - Prob. 1ITDCh. 29 - Prob. 2ITD
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- The 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_forwardCompanion cells are unique to:A. Bryophytes B. PteridophytesC. Angiosperms D. Gymnospermsarrow_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_forward
- Know examples of gymnosperm families that have the following characteristics: A. Only opposite whorled leaves B. Compound leaves C. Fleshy, drupaceous appearing fruits D. Genera that are not evergreenarrow_forwardVegetative propagation in liverworts is possible because of propagules known as gemmae. Select one: True False Where would you most likely find the megasporangium of an angiosperm? a. Within an ovule contained within an ovary of a flower b. In the style of a flower c. Enclosed in the stigma of a flower d. Packed into pollen sacs within the anthers found on a stamen Which of the following plant structures is NOT matched correctly to its function? a. Stomata allow gas transfer b. Tracheids allow the movement of water and minerals c. Cuticle prevents desiccation d. Plasmodesmata - form a supportive meshwork which acts as a cellular exoskeletonarrow_forwardExamine the angiosperm of different forms (habit),draw labelled diagrams and provide important features. a. Herbs b. Shrubs c. Trees d. Vines e. Lianasarrow_forward
- In a flower after fertilization, the following tissues are diploid: a. carpel, integuments, and megaspore mother cell. b. carpel, integuments, and megaspore. c. carpel, megaspore, and zygote. d. carpel, megaspore mother cell, and endosperm.arrow_forwardUnlike eudicots, monocots have a. woody tissue.b. two seed leaves.c. scattered vascular bundles in their stems.d. flower parts in multiples of four or five.arrow_forwardAnswer the following question: How can you distinguish a monocot from a eudicot? How are insects such as bees important for the reproduction of angiosperms? What advantages do flowers give angiosperms over gymnosperms?arrow_forward
- Flower shape, scent, color, and the presence of nectar in the flowers of some angiosperms function toa. deter predators.b. attract animal pollinators.c. deter insect pests.d. enhance symbiosis.arrow_forwardA botanist discovers a new species of plant in a tropical rain forest. After observing its anatomy and life cycle, he notes the following characteristics: 1. Sperm contained in pollen grains, 2. Sporophyte dominant, 3. Seeds contained in fruits. 4. Xylem with tracheids, Mosses Green Algae Ferns Pines/gymnosperms Flowering plants/angiospermsarrow_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_forward
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