Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 22, Problem 6RQ
Summary Introduction
To determine:
The number of species of flowering plants is greater than the number of species in the rest of the plant kingdom combined and explain the feature that is responsible for the enormous success of
Introduction:
The angiosperms are the vascular seed plants in which a fertilized egg grows up into a seed that is enclosed in a hollow ovary. The ovary itself is enclosed by a flower. They have a structure called fruit in which the development of seeds takes place.
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A slight change in a plant species’ flower structure might favor a different pollinator. How might such a change in flower structure lead to a new plant species? How does coevolution between flowering plants and animal pollinators help explain the huge diversity of angiosperms?
Most 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.
Pollination
Fertilization
Seed dispersal
Which of the following steps in the reproduction of angiosperms do animals assist with?
Chapter 22 Solutions
Biology
Ch. 22.1 - describe the features that distinguish plants from...Ch. 22.2 - In stark contrast to the stinking corpse lily and...Ch. 22.2 - describe the probable ancestor of plants?Ch. 22.2 - identify the closest living relatives of plants...Ch. 22.2 - describe the adaptations that equip plants for...Ch. 22.3 - Why are all nonvascular plants short?Ch. 22.3 - In each of these photos, is the pictured structure...Ch. 22.3 - Can you think of some adaptations that help...Ch. 22.3 - What are the advantages and disadvantages of wind...Ch. 22.3 - Which Plant Provide Us with the Most Food?
Ch. 22.3 - The stinking corpse lily harms species it...Ch. 22.3 - Prob. 1CYLCh. 22.3 - describe the major plant taxonomic groups and...Ch. 22.3 - describe the key steps in the life cycles of...Ch. 22.4 - In the initial trials with Argemone mexicana in...Ch. 22.4 - describe some of the effects that plants have on...Ch. 22.4 - Perhaps surprisingly, a parasitic lifestyle is not...Ch. 22 - In an alternation of generations life cycle,...Ch. 22 - Which of the following are not nonvascular plants?...Ch. 22 - Which of the following structures is present in...Ch. 22 - In which of the following is the gametophyte stage...Ch. 22 - Prob. 5MCCh. 22 - Scientists hypothesize that the ancestors of...Ch. 22 - Plant adaptations to life on land include a(n)...Ch. 22 - Seedless vascular plants must reproduce when...Ch. 22 - Three groups of nonvascular plants are __________,...Ch. 22 - What is meant by alternation of generations? What...Ch. 22 - Prob. 2RQCh. 22 - Describe evolutionary trends in the life cycles of...Ch. 22 - From which algal group did green plants probably...Ch. 22 - Prob. 5RQCh. 22 - Prob. 6RQCh. 22 - Prob. 7RQCh. 22 - Prob. 8RQCh. 22 - Prob. 9RQCh. 22 - Prob. 1ACCh. 22 - Prob. 2AC
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- Angiosperms are the most diverse group of plants on the planet, by far. However, using flowers for reproduction does have potential disadvantages. Briefly describe two possible challenges (e.g., problems, risks, costs, etc.) that might be associated with using flowers as a reproductive strategy.arrow_forwardOne difference between mosses and angiosperms (flowering plants) is that: 1. mosses spend equal amounts of time in the gametophytic and sporophytic phases of the life cycle 2. angiosperms spend more time in the haploid phase of the life cycle 3. angiosperms spend more time in the diploid phase of the life cycle 4. a & b 5. a & carrow_forwardWhich statement below is correct regarding the formation of the endosperm in angiosperms? O the endosperm is formed from the female gametophyte and is haploid O a single sperm nucleus fertilizes the egg nucleus to become the diploid zygote O a sperm nucleus forms both the zygote and the endosperm through double fertilization O a second sperm nucleus fuses with the two polar nuclei of the egg sac МacВook Pro G Search or type URL @ 2# $ & * 2 3 4 6 8 W E R Yarrow_forward
- 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_forwardWhat are the four modern-day groups of gymnosperms?arrow_forwardGymnosperms were also the first plants to develop pollen . Which of the following statements correctly describes one of the advantages of pollen ?arrow_forward
- What do gymnosperms and angiosperms have in common? Answers: They are found in all habitats. They produce flowers. They produce fruits. They have leaves with a large surface area. They reproduce with seeds. Please explain which one is the correct answer.arrow_forwardWhat is the main difference between angiosperms and gymnosperms in terms of where the seeds are produced? Where would you look to confirm this with your own observations?arrow_forwardMost extant species of gymnosperms are now considered as "living fossils", why is that so? Give some insights on why gymnosperms were not able to dominate land despite of having seeds.arrow_forward
- There are four phyla that belong to the gymnosperm. Describe Phylum Ginkgophyta and explain why and how Ginkgo biloba became the only surviving species. What is the importance of this species to man?arrow_forwardWhen and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?arrow_forwardWhich of the following adaptations possibly explain(s) why angiosperms are more diverse than gymnosperms on planet Earth: Group of answer choices Seeds Seeds AND Fruits and Flowers AND Pollen tube Fruits and Flowers Fruits and Flowers AND Pollen tube Pollen tubearrow_forward
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