BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 56, Problem 1A
Based on results from studies at Hubbard Brook Experimental Forest, what would be the predicted effect of clearing trees from a watershed?
a. Increased loss of water and nutrients from a watershed
b. Decreased loss of water and nutrients from a watershed
c. Increased availability of phosphorus
d. Increased availability of nitrate
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Students have asked these similar questions
What is the main reason that total forest area is increasing in many developed countries?
A. Technology is improving in the timber industry.
B. Natural forests have been replaced with planted and second-growth forests
C. Interest rates tend to be increasing
D. Falling timber prices make harvesting less profitable
D45. Trees in the forest cormpete for limited resources like space, sunlight and soil nutrients.
Some small plants like grasses and shrubs can't grow well therefore, population decreases.
Which type of forest is considered a reservoir of biodiversity?
a. old-growth
b. second-growth
c. commercial
d. tree plantation
Chapter 56 Solutions
BIOLOGY
Ch. 56.1 - Prob. 1LOCh. 56.1 - Prob. 2LOCh. 56.1 - Prob. 3LOCh. 56.2 - Describe the different trophic levels.Ch. 56.2 - Distinguish between energy and heat.Ch. 56.2 - Explain how energy moves through trophic levels.Ch. 56.3 - Explain the meaning of trophic cascade.Ch. 56.3 - Prob. 2LOCh. 56.4 - Define ecosystem stability.Ch. 56.4 - Prob. 2LO
Ch. 56.4 - Prob. 3LOCh. 56.5 - Prob. 1LOCh. 56.5 - Prob. 2LOCh. 56 - Prob. 1DACh. 56 - Prob. 2DACh. 56 - Prob. 3DACh. 56 - Prob. 4DACh. 56 - Prob. 1IQCh. 56 - Prob. 2IQCh. 56 - Prob. 3IQCh. 56 - Prob. 4IQCh. 56 - Prob. 5IQCh. 56 - Prob. 6IQCh. 56 - Prob. 7IQCh. 56 - Which of the statements about groundwater is NOT...Ch. 56 - Photosynthetic organisms a. fix carbon dioxide. b....Ch. 56 - Prob. 3UCh. 56 - Nitrogen is often a limiting nutrient in many...Ch. 56 - Prob. 5UCh. 56 - Prob. 6UCh. 56 - Inverted ecological pyramids of real systems...Ch. 56 - Prob. 8UCh. 56 - Prob. 9UCh. 56 - The equilibrium model of island biogeography...Ch. 56 - Based on results from studies at Hubbard Brook...Ch. 56 - According to the trophic cascade hypothesis, the...Ch. 56 - At Cedar Creek Natural History Area, experimental...Ch. 56 - Given that ectotherms do not utilize a large...Ch. 56 - Given that, in general, energy input is greatest...Ch. 56 - Prob. 3SCh. 56 - Explain several detailed ways in which increasing...
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- Forest trees have trunks, branches, and big roots, contributing to large amounts of total biomass. Grasslands have comparatively less biomass, but have a larger net primary production than that of forests. Why is this so? A. Less respiration is needed in the forest habitat B. More biomass is added in a grassland in the same time as that of forests C. The number of consumers within the forest is greater D. Solar energy is converted to chemical energy at a much higher rate in forestsarrow_forwardWhich forest type is the largest? A. Tropical Dry Forests B. Temperate C. Boreal D. Tropical moist forestsarrow_forwardWhat environmental issue is associated with tropical rainforests due to human activities like deforestation? A. increased fire prevention B. loss of permafrost C. increased biodiversity D. fragmentationarrow_forward
- a This food web shows the flow of energy through a desert ecosystem Which correctly describes a relationship shown on this food web ? A. The coyote and the mountain lion have a predator /prey relationship B. The coyote and the mountain lion have a producer /consumer relationship C. The golden - mantled squirrel and the big sagebrush have a predator /prey relationship . D. The golden -mantled squirrel and the big sagebrush have a producer /consumer relationshiparrow_forwardWhichstatement about changing ecosystem properties during succession is false?a.Biomass increasesb.Community respiration increasesc.Primary production increasesd.Soil depths decreasee.Stream spiraling lengths decreasearrow_forwardMichael wants to build a new storage shed and is considering clearing some trees from his land to use as lumber. What justification best explains the ecological benefit of saving his trees? a Decreasing shade and windbreaks b Providing food for hundreds of species c Sequestering (storing) carbon d Aiding in discharge of aquiferarrow_forward
- You have a community composed of the following trees. Research determined the R* for each tree. Determine the outcome of the following scenarios. Nitrogen Phosphorous Potassium Red oak 10 White oak 10 1 3. Assume you only have red, white and live Swamp oak 3 10 1 Live oak 10 3 oaks in a location competing for nitrogen. Which oak will win in competition? O A. red O B. white O C. live O D. swamparrow_forwardAs a general rule, how much energy is lost in the transmission of energy from one trophic level to the one immediately above it? a. 1% b. 10% c. 90% d. 50%arrow_forwardWhich is NOT a downside to the loss of crop diversity? A. More vulnerability to pests/diseases. B. Loss of consumer options. C. Lower nutritional value. D. Lower availability of corn and wheat.arrow_forward
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