Biology
12th Edition
ISBN: 9780078024269
Author: Sylvia Mader, Michael Windelspecht
Publisher: McGraw-Hill Education
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Chapter 22, Problem 1TS
A fineline seems to exist between symbiosis and parasitismwhen you examine the relationships between
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What two plant diseases, caused by parasitic fungi, havehad an enormous impact on forests in the United States? Inwhich taxonomic group are these fungi found?
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O mycorrihiza
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Chapter 22 Solutions
Biology
Ch. 22.1 - Prob. 1CYPCh. 22.1 - Prob. 2CYPCh. 22.1 - Prob. 3CYPCh. 22.2 - Prob. 1CYPCh. 22.2 - Prob. 2CYPCh. 22.2 - Prob. 3CYPCh. 22.3 - Prob. 1CYPCh. 22.3 - Prob. 2CYPCh. 22.3 - Prob. 3CYPCh. 22 - Prob. 1BS.1QC
Ch. 22 - Prob. 1BS.2QCCh. 22 - Prob. 1ACh. 22 - Prob. 2ACh. 22 - Prob. 3ACh. 22 - Prob. 4ACh. 22 - Prob. 5ACh. 22 - Prob. 6ACh. 22 - Prob. 7ACh. 22 - Prob. 8ACh. 22 - Prob. 9ACh. 22 - Prob. 10ACh. 22 - Prob. 11ACh. 22 - Prob. 12ACh. 22 - A fineline seems to exist between symbiosis and...Ch. 22 - Prob. 2TSCh. 22 - Prob. 3TSCh. 22 - You are looking through a seed catalog and...
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- Are all fungi detrimental for other organisms? Explain why if yes or noarrow_forwardFungi play a variety of roles in the ecosystem. Discuss briefly each of the following roles stated below. Give specific examples whenever possible. 1. Decomposers 2. Mycorrhizae 3. Lichen Symbiont 4. Endophyte 5. Plant Pathogenarrow_forwardBoth bacteria and fungi are major environmental decomposers. Obviously competition exists in any given environment, but fungi usually have an advantage. What characteristics specific to fungi provide this advantage?arrow_forward
- You discover a fungi that has the ability to penetrate its host's cell wall. Which fungal group would this species most likely belong? O lichens O arbuscular mycorrhizal O endophytes O ectomycorrhizal fungi MacBook Pro ☆ G Search or type URL & #3 3 4 5 8 TE T. Y Rarrow_forwardWhat are some ways in which the relationship between a plant root and a mycorrhizal fungus is mutualistic?arrow_forwardBoth Ascomycetes and Basidiomycetes form ectomycorrhizal associations with plants. Another group of fungi, the Glomeromycota, form endomycorrhizal partnerships. Which answer below best describes the two pictures seen here? (Hint: mycorrhizae stain reddish-purple!) Picture A 400x (c.s.) Picture B 400x (c.s.) O Picture A is an endo- while Picture B is an ecto-mycorrhizal view O Picture A is an ecto- while Picture B is an endo-mycorrhizal viewarrow_forward
- Which of the following statements is FALSE about fungi? O A Fungi can be either heterotrophic or autotrophic. O B Septa are divisions between fungal cells with small pores that allow cytoplasm to flow between the cells. O C Fungal cells walls contain chitin, which is the same material found insect exoskeletons. D The fungi and the choanoflagellates are part of a group called the Opisthokonts. O E All fungi are part of a single monophyletic group.arrow_forwardWhich of these statements are false for lichens? Please select all correct answers. a.) Fungal species are obligate symbionts b.) A lichen is two species engaged in commensalism c.) Algal species are facultative symbionts d.) Lichen fungi gain sugars from algae e.) The relationship is beneficial for both fungi and algaearrow_forwardRead these two statements about plant-fungal interactions, then pick the statement below that is TRUE. (A) Root fungi in phylum Ascomycota can cause plants to produce antioxidants that provide protection against the stress of drought, and plants feed carbon to the fungi in their roots. (B) Root fungi and plants have evolved mutual benefits through a long history of interaction, in which fungi that provided the greatest benefits to plants had the highest fitness because of the carbon the plants fed them, and plants that supported fungi had the highest fitness because of the protection provided by the fungi. (A) is a proximate cause for plant-fungal symbiosis, whereas (B) is an ultimate cause. O (A) is an ultimate cause for plant-fungal symbiosis, whereas (B) is a proximate cause. Understanding plant-fungal interactions would NOT require cost-benefit analysis because there are no fitness trade-offs. (A) is an innate behavior and (B) is a learned behavior. O O O Oarrow_forward
- The Armillaria fungus species that grew to massive size inOregon harms trees in the forests it inhabits. As the fungusfeeds on roots, it causes “root rot” that weakens or kills trees.This root rot provides aboveground evidence of Armillaria’sexistence; the giant Oregon specimen was first identified byexamining aerial photos to find forested areas with many deadtrees. Can people, as well plants, be victims of fungal attack?arrow_forwardFungi have an extremely high surface-area-to-volume ratio. What is the advantage of this to an organism that gets most of its nutrition through absorption? O This high ratio means that fungi have a thick, fleshy structure that allows the fungi to store more of the food it absorbs. O The larger surface area allows for more material to be transported through the cell membrane. O This high ratio creates more room inside the cells for additional organelles involved in absorption. O The lower volume prevents the cells from drying out too quickly, which can interfere with absorption. MacBook Pro G Search or typ e URL %23 %2$ % & 3 4 5 8 E R Y F G H. K トarrow_forwardThe ascomycete fungus that causes chestnut blight and has killed an estimated 4 billion chestnut trees in North America was accidentally imported from Asia. Why are plants particularly vulnerable to fungi imported from other regions? How do the plants in Asia protect themselves against ascomycete fungus so they are not affected?arrow_forward
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