Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 58, Problem 3CQ
Core Concept: Systems In the nutrient-poor heathlands of Europe, scotch heather (Calluna vulgaris) and cross-leaved heath (Erica tetralix) are gradually replaced by variegated purple moor grass (Molinia caerulea) and wavy hair grass (Deschampsia flexuosa). Adding C. vulgaris litter or nitrogen fertilizer to the soil speeds up this process. Explain this phenomenon, and identify which mechanism of succession is supported.
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Seed bank play an important role in ex-situ conservation, Is it true? If yes support your answer with valid arguments
In the context of ecological succession, classify each example as facilitation, inhibition, or tolerance.
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Facilitation
Inhibition
Tolerance
Answer Bank
Lichens can survive on bare rock surfaces where rooted plants cannot live.
The deep shade under mature heoch trees keeps birch tree seeds from sprouting.
The dense rocts of cogon grass outcompete other grasses for water and nutrients.
Plant rocts growing in cracks in bare ock assist with soil formation.
Nitrogen-fixing bacteria in alder roots increase the soil's nitrogen content.
Oaks can sprout and grow in the dim light under pines and birches.
The figure below shows the degree of stomatal opening in three plant species during the course of a single 24-hour day.
Comparing Species A and Species B in the figure above, which statement below is correct?
Species A and Species B are similar at preventing water lost by transpiration
Species A is better at preventing water lost by transpiration
Species B is better at preventing water lost by transpiration
Chapter 58 Solutions
Biology
Ch. 58.1 - Prob. 1CCCh. 58.3 - Prob. 1CCCh. 58.3 - Inhibition implies that competition exists between...Ch. 58.4 - Prob. 1CSCh. 58.4 - Prob. 1CCCh. 58.4 - Prob. 1EQCh. 58.4 - Prob. 2EQCh. 58.4 - CoreSKILL What did the researchers conclude about...Ch. 58.5 - Core Skill: Connections In the two food chains...Ch. 58.5 - Prob. 1CC
Ch. 58.5 - Prob. 2CSCh. 58 - Prob. 1TYCh. 58 - Prob. 2TYCh. 58 - Which evidence suggests that more diverse...Ch. 58 - The process of primary succession occurs a. around...Ch. 58 - Prob. 5TYCh. 58 - Prob. 6TYCh. 58 - Prob. 7TYCh. 58 - Prob. 8TYCh. 58 - Prob. 9TYCh. 58 - Prob. 10TYCh. 58 - Prob. 1CQCh. 58 - Prob. 2CQCh. 58 - Core Concept: Systems In the nutrient-poor...Ch. 58 - List some possible ecological disturbances, their...Ch. 58 - Prob. 2COQ
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- Intraspecific competition is a competition between members of the same species and is commonly observed in crop plants. Table 6.2 shows the results of a greenhouse experiment which examined the effects of density on the germination and growth of barley. Plants were grown for two weeks in 10- cm diameter pots kept in identical environmental conditions and watered regularly. At the end of the experiment the plants were cropped by cutting the stems at the soil surface. In the given context, can you explain thoroughly the meaning of plant density that this passage is talking about?arrow_forwardThe diagram below shows the land occupied by mangrove forests in various regions over 25 years. Which statement below best describes the trend shown in the graph?arrow_forwardA. Most varieties of Sedum are not native plants in Albany or New York City. Why may it be dangerous to introduce a new species to an established ecosystem?B. How does a green roof reduces the amount of carbon dioxide in the atmosphere?C. Why is it important to reduce the amount of carbon dioxide in the atmosphere?D. State one disadvantage of a green roof. E. What are other ways the owners or architects of a building can reduce its carbon footprint?arrow_forward
- Discuss the interrelationships between a coral reef, mangrove, and seagrass ecosystem. An illustration or concept map may be provided.arrow_forwardThe figure below shows the degree of stomatal opening in three plant species during the course of a single 24-hour day. stomatal opening graph Comparing Species A and Species B in the figure above, which statement below is correct? Select one: Neither Species A or Species B are likely to be a CAM plant Species B is likely to be a CAM plant Species A is likely to be a CAM plantarrow_forwardSpecies A is more drought tolerant than species B. Please provide one leaf characteristic and one xylem characteristic that could contribute to the greater drought tolerance of species A over species B.arrow_forward
- After a lava flow like seen below in Hawaii Volcanoes National Park, the beginning stage of primary succession begins with the non-vascular plants die and decompose to become the first soil on the previously bare rock. the root system of simple plants prevents erosion. the growth of non-vascular plants such as moss or lichen beginning to grow on bare rock. large gymnosperm and angiosperm develop which leads to shade tolerant plants being established.arrow_forwardAlnus Salix Picea 100 80 Time since glaciation (years) 17 40 60 120 138 The graph shows data of plant species richness as a function of time measured in plots that were dominated by either Alnus (black, solid lines), Salix (yellow, dotted line) or Picea (blue, dashed line) (Buma et al. 2019). (FYI: Alnus is alder, Salix is willow, Picea is spruce) Each line describes the average change of plant species richness through time in those plots. For each of the dominant species in those plots, determine whether they facilitate, inhibit or have no effect on species richness in late successional stages. Alnus [ Select ] Salix [ Select ] Picea [ Select ] Plant species richness in plotsarrow_forwardPurple loosestrife (Lythrum salicaria) and musk thistle (Carduus nutans) are ruderal plants that are invasive to Colorado. Both species can inhabit a range of habitats, but they grow especially well in high temperatures and moist soils. L. salicaria also harbors nitrogen-fixing bacteria in its roots. Suppose a researcher investigated the type of community interaction that these species have with each other, in nitrogen-poor and nitrogen-rich soils. The researcher grew the two species of plants in artificially constructed plots, as follows:• Treatment 1: L. salicaria in nitrogen-rich soil• Treatment 2: L. salicaria in nitrogen-poor soil• Treatment 3: C. nutans in nitrogen-rich soil• Treatment 4: C. nutans in nitrogen-poor soil• Treatment 5: L. salicaria and C. nutans in nitrogen-rich soil• Treatment 6: L. salicaria and C. nutans in nitrogen-poor soil Plots contained a total of 10 plants (either all 10 of one species, or five of one species and five of…arrow_forward
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