Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 22.3, Problem 4TC
What are the advantages and disadvantages of wind pollination? What are the advantages and disadvantages of pollination by animals? Why do both types of pollination persist among the
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Some angiosperm species have exclusive relationships with just one species of pollinator. How would this relationship benefit the plant? What are the risks to the plant?
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What is the mechanism of pollination in gymnosperms and how the size and presence of wings on each grain help affect pollination. Which structures are haploid and which are diploid? Are pollen grains the same as spores? Why would anybody care about the structures of conifer pollen
Chapter 22 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 22.1 - describe the features that distinguish plants from...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. 22.2 - In stark contrast to the stinking corpse lily and...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 - Prob. 1CYLCh. 22.3 - describe the major plant taxonomic groups and...Ch. 22.3 - describe the key steps in the life cycles of...Ch. 22.3 - The stinking corpse lily harms species it...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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- The three main parts of a typical mature eudicot seed are the _______ . a. pollen grain, egg, and seed coat b. embryo, endosperm, and seed coat c. megaspores, microspores, and ovule d. embryo, cotyledons, and seed coatarrow_forwardWhat is the dominant generation in the pine life cycle? How does pollination occur in gymnosperms?arrow_forwardHow do the petals of wind-pollinated flowers differ from the petals of most insect-pollinated flowers? How is this difference adapative?arrow_forward
- 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?arrow_forwardWhat are the advantages of reduced gametophyte? What is an ovule and what are integuments? What is different between ways pollen can be dispersed? What is a pollen gain? what is pollination? What are some different ways pollen can be dispersed?arrow_forwardWhat is the evolutionary importance of the fruits for the angiosperms?arrow_forward
- Answer the following questions: What advantages do flowers give angiosperms over gymnosperms? Describe a probable method for dispersal of each fruit (apple, banana, and orange). What are the major parts (and their functions) of a sunflower?arrow_forwardBoth wind and water pollinated flowers are not very colourful and do not produce nectar. What would be the reason for this?arrow_forwardAngiosperms 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_forward
- If there is a steep decline in the population of the major pollinators in an area, which of the following angiosperms would be most directly affected: aspen trees, pear trees, or dandelion plants? Why?arrow_forwardWhat is the biological importance of a flower? What is the difference between microsporogenesis and megasporogenesis?arrow_forwardHow does pollination by insects solve many of the problems associated with wind pollination?arrow_forward
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