Campbell Biology In Focus
2nd Edition
ISBN: 9780134203072
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 26.2, Problem 2CC
Describe the importance of mycorrhizae, both today and in the colonization of land. What evidence supports the antiquity of mycorrhizal associations?
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Describe the importance of mycorrhizae, both today andin the colonization of land. What evidence supports theantiquity of mycorrhizal associations?
escribe the similarities between the establishment of arbuscular mycorrhizae and legume root nodules. Which is considered to be older evolutionarily? What is the evidence for this?
Ecologists often attempt to introduce new plants to restore degraded land. In an arid climate, scientists recommend introducing plants with arbuscular mycorrhizae. How would the mycorrhizae increase the plants’ survival compared to plants without mycorrhizae?
Chapter 26 Solutions
Campbell Biology In Focus
Ch. 26.1 - Why do researchers identify charophytes rather...Ch. 26.1 - Prob. 2CCCh. 26.1 - Prob. 3CCCh. 26.1 - WHAT IF? What would the human life cycle be like...Ch. 26.2 - Prob. 1CCCh. 26.2 - Describe the importance of mycorrhizae, both today...Ch. 26.2 - MAKE CONNECTIONS Review Figures 8 .3 and 8.5. If a...Ch. 26.3 - Prob. 1CCCh. 26.3 - Prob. 2CCCh. 26.3 - MAKE CONNECTIONS Monilophytes and seed plants both...
Ch. 26.4 - What features not present in seedless plants have...Ch. 26.4 - Explain why Darwin called the origin of...Ch. 26.4 - MAKE CONNECTIONS Suppose the Bennettitales and...Ch. 26.5 - Prob. 1CCCh. 26.5 - Prob. 2CCCh. 26.5 - MAKE CONNECTIONS Figure 1.9 illustrates the...Ch. 26.5 - Prob. 4CCCh. 26 - Prob. 1TYUCh. 26 - Which of the following characteristics of plants...Ch. 26 - Prob. 3TYUCh. 26 - Prob. 4TYUCh. 26 - Prob. 5TYUCh. 26 - DRAW IT Use the letters a-d to label where on the...Ch. 26 - SCIENTIFIC INQUIRY INTERPRET THE DATA The grass...Ch. 26 - FOCUS ON EVOLUTION The history of life has been...Ch. 26 - FOCUS ON INTERACTIONS Giant lycophyte trees of...Ch. 26 - SYNTHESIZE YOUR KNOWLEDGE These stomata are from...
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- Both 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_forwardDescribe the important ecological role of mycorrhiza.arrow_forwardDetermine if the following statements are true and false. (a) Mycorrhizae exhibit non-symbiotic relatiionship.(b) All biotic relationships are symbiotic.arrow_forward
- Describe the major similarties and differences between peziza and saccharomyces.Note ecological and ecnomic features of those taxa. Which organism would you most likely find involved in a mycorrhizal relationshiparrow_forwardWhich species requires the least amount of nutrients in order to grow: Lemna polyrhiza or Lemna gibba? Lemna gibba O Lemna polyrhizaarrow_forwardBiologists have discovered that many mycorrhizal fungi are sensitive to a low pH. What human-caused environmental problem may prove catastrophic for these fungi? How may this problem affect their plant partners? What measures could we take to decrease the problem?arrow_forward
- Identify mycorrhizal structure that penetrates into plant roots and reasons behind this. Also, explain the roles of mycorrhizae in plant defense against plant disease.arrow_forwardThe greatest difference in health between two groups of plantsof the same species, one group with mycorrhizae and one groupwithout mycorrhizae, would be in an environment(A) where nitrogen-fixing bacteria are abundant.(B) that has soil with poor drainage.(C) that has hot summers and cold winters.(D) in which the soil is relatively deficient in mineral nutrientsarrow_forwardWhich of the following is true of mychrrhizae? 1. The fungal hyphae of ectomycorrhizae form arbuscles. 2. Ectomycorrhizae penetrate the cytoplasm of root cells. 3. Endomycorrhizal fungal hyphae form a dense mantle ensheathing roots. 4. Ectomycorrhizae are found in many crop plants such as wheat and maize. 5. Ectomycorrhizal fungal hyphae form a dense mantle ensheathing roots.arrow_forward
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