BIOLOGY VOL. II
16th Edition
ISBN: 9781308795317
Author: Raven
Publisher: Mcgraw-Hill/Create
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Textbook Question
Chapter 31, Problem 3A
Apply your understanding of
a. Homospory in angiosperms
b. Fruits that attract animal dispersers
c. Cones that protect the seed
d. Dominant gametophyte generation
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Check out a sample textbook solutionStudents have asked these similar questions
Which of the following are found in gymnosperms, as well as in angiosperms?
a.
Fruits
b.
Seeds
c.
Cones
d.
Flowers
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.
Apply your understanding of angiosperms to identify which innovations likely contributed to the tremendous success of angiosperms.a. wind pollinationb. coevolution of flowers and their pollinatorsc. cones that protect the seedd. dominant gametophyte generation
Chapter 31 Solutions
BIOLOGY VOL. II
Ch. 31 - The lack of seeds is a characteristic of all a....Ch. 31 - Prob. 2UCh. 31 - Which of the following gymnosperms possesses a...Ch. 31 - In a pine tree, the microspores and megaspores are...Ch. 31 - Which of the following terms is NOT associated...Ch. 31 - Which of the following potentially represents the...Ch. 31 - Prob. 7UCh. 31 - Prob. 8UCh. 31 - The pericarp is the a. ovary wall. b. developing...Ch. 31 - Reproduction in angiospenns can occur more quickly...
Ch. 31 - In double fertilization, one sperm produces a...Ch. 31 - Apply your understanding of angiosperms to...Ch. 31 - Comparing stems of two plant specimens under the...Ch. 31 - Prob. 5ACh. 31 - Fruits are complex organs that are specialized for...Ch. 31 - You haw been hired as a research assistant to...Ch. 31 - Assess the benefits and drawbacks of...Ch. 31 - The relationship between flowering plants and...Ch. 31 - Prob. 4S
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- Examine the angiosperm of different forms (habit),draw labelled diagrams and provide important features. a. Herbs b. Shrubs c. Trees d. Vines e. Lianasarrow_forwardWhich of the following is the MOST likely explanation for the evolutionary success of angiosperms? A. Angiosperms have complex and successful interactions with animals leading to effective pollination and seed dispersal. B. Angiosperms have a vascular system that allows plants to grow tall and spread spores farther. C. Angiosperms have stomata that allow conservation of water. D. Angiosperms developed seeds and pollen, which allow reproduction to be independent from water.arrow_forwardPine, 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. dicotyledonsarrow_forward
- Which of these is a feature not present in seedless plants that have contributed to the success of seed plants on land? a. Seeds have four layers of protective tissue, the seed coat, that improve survival by providing more protection from environmental stresses. b. The reduced gametophytes of seed plants are nurtured by sporophytes and protected from stress, such as drought conditions and UV radiation. c. Seed germination is solely mediated by water during episodes of heavy rain. d. Pollen grains, with walls containing sporopollenin, deter herbivores. Three unknown non-vascular plant species were collected by Biology 3 students. Which characters BEST discriminate them from one another? 1. protonema II. special organelles III. seta IV. calyptra V. capsule VI. stalk a. I,II,III b. I,III,V c. III, IV, V d. II,IV,VIarrow_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_forwardFlower 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_forward
- Examine different root systems in angiosperm plants, draw labelled diagram and provide important features. a. Tap root system b. Fibrous root system c. Adventitious root systemarrow_forwardHow are compound leaves distinguished from simple leaves?a. Compound leaves do not have axillary buds at the baseof leaflets.b. Compound leaves are smaller than simple leaves.c. Simple leaves are usually deciduous.d. Compound leaves are found only on pine trees.e. Simple leaves are found only in gymnosperms.arrow_forwardMost angiosperms incorporate the assistance of animals in their reproductive cycle. This is a major advancement that gave them an advantage over other plant lineages and helped them become the dominant type of plant on Earth today. Which of the following steps in the reproduction of angiosperms do animals assist with? Check all that apply. A. Seed dispersal B. Pollination C. Fertilizationarrow_forward
- a. How are the angiosperms classified according to the Angiosperm Phylogeny Group (APG)? b. What is the present understanding about the origin of flowering plants, and the classification of angiosperms into “monocots” and “dicots”, based on most recent evidences? c. The work of plant taxonomists of the 20th century who identified /established the different families of flowering plants based mainly on morphological and anatomical details is still valued and being used today, despite the general acceptance of the Angiosperm Phylogeny Group (APG) as a classification system for the flowering plants. Explain why.arrow_forwardCompanion cells are unique to:A. Bryophytes B. PteridophytesC. Angiosperms D. Gymnospermsarrow_forwardFruits do not form in gymnosperms becausea. in gymnosperms, the seed is surrounded by the ovule.b. in angiosperms, the ovary is surrounded by the ovule.c. in gymnosperms, the ovule is surrounded by the ovary.d. in angiosperms, the ovule is surrounded by the ovary.arrow_forward
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