EBK BIOLOGY
5th Edition
ISBN: 8220101337627
Author: Maier
Publisher: PEARSON
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Chapter 15, Problem 1CTS
Summary Introduction
Introduction:
The biodiversity is very important for human and wild welfare. The loss of biodiversity comewith major changes to the environment and loss of many important elements of nature.
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Which of the following statements about ecology is correct? CHECK ALL THAT COULD BE CORRECT
A)Ecological studies may involve the use of models and computers.
B)Ecology is the study of the interactions between biotic and abiotic aspects of the environment.
C)Ecology is a discipline that never considers natural selection and evolutionary history
D)Ecologists may study populations and communities of organisms.
E)Ecology spans increasingly comprehensive levels of organization, from individuals to ecosystems.
A conservation biologist has been asked to explain why it is important to protect biodiversity. She would list all of the following reasons except for which one?
A. Humans are dependent on many species for food, medicines, fiber, and other necessities.
B. Biodiversity can be exploited indefinitely for the profit of humans.
C. Other species have inherent value and humans have a moral obligation to protect them.
D. Biodiverse ecosystems provide ecosystem services that sustain all life on Earth.
E. Biodiversity provides emotional and physical health benefits by providing places for humans to visit for wonder, insight, and exercise.
(15)The text book gives many details about problems with the threats to biodiversity on planet
Earth, but one problem which may be inherent in their analysis is (a) they fail to note that
biodiversity loss involves population declines (b) they fail to consider human beings as part of
the ecosystems that they survey (c) they fail to note that extinction is reversible (d) they fail to
point out that if trends continue, we may see the extinction of more than half of all species
Chapter 15 Solutions
EBK BIOLOGY
Ch. 15 - Prob. 1LTBCh. 15 - Compare and contrast the species interactions of...Ch. 15 - Prob. 3LTBCh. 15 - Current rates of species extinction appear to be...Ch. 15 - According to the generalized species-area curve,...Ch. 15 - Prob. 6LTBCh. 15 - Prob. 7LTBCh. 15 - Which of the following is an example of a...Ch. 15 - Prob. 9LTBCh. 15 - Prob. 10LTB
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- 9)In the video, Dr. Paine says, "all animals are equal, but some animals are more equal than others." Which of the following statements explains what he meant by this? a)Some animals eat at lower trophic levels than others b)Some animals have greater effects on their ecosystem than others c)Some animals are more important to energy flow through their ecosystem d)Some animals are in greater abundance than others e)Some animals eat at higher trophic levels than othersarrow_forwardChoose the statement that is most likely made by an environmentalist rather than by an environmental scientist. "On average, 52 animal species move one step closer to extinction each year because of overpopulation and habitat destruction.” “Human population growth is a current environmental issue, as is climate change.” “When the number of existing humans exceeds the carrying capacity of the planet, we have reached the state of overpopulation.” “Citizens must take matters into their own hands and start having fewer children to reduce the world’s population, starting now.”arrow_forwardWhich of the following best predicts the consequences of introducing brown rats ( invasive species) to an island where they did not previously exist? Choose 1 answer: Choose 1 answer: (Choice A) A The rat population size will likely remain small, and as a result the rats will not be able to outcompete other organisms for resources. (Choice B) B Without its typical food sources, the rat population will not be able to become established, and the island ecosystem will remain stable. (Choice C) The rat population will grow rapidly, disrupting the island's community structure by feeding on native plants and animals. (Choice D) D Without any natural predators, the rat population will become established and help increase the species diversity of the island answer explainarrow_forward
- Nature is declining globally at rates unprecedented in human history – and the rate of species extinctions is accelerating, with grave impacts on people around the world. Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. (i) Greater species diversity ensures natural sustainability for all life forms. Discuss. (ii) How can the loss of biodiversity be prevented?arrow_forwardAnswer the following: 1. What is your take on the value of biodiversity for health and medicine? What are the parameters to distinguish the good and bad ways of utilizing biodiversity in this context? 2. How do business and development affect biodiversity? 3. Why are the cultural tradition of the community important in consuming or using the goods sourced from biodiversity?arrow_forward(A) The above figure indicates how much biologically productive land is needed to support different activities (e.g. 'carbon' is land needed to offset carbon emissions from energy production; 'cropland' is land needed to grow crops for food). What Goes it say about the sustainability of our lifestyle? Explain. (B) The world's ecosystems provide many valuable services, that we all benefit from. Yet, these services are often undervalued and taken for granted. Why? For full credit, provide an example with at least one specific ecosystem service. (C) Humans are impacting ecosystems (and their services) in many ways, often negatively. Throughout this course we've discussed some simple actions that can be taken by individuals to help mitigate our impact on the environment. List one action and specify how it can help.arrow_forward
- Which of the following statements about systems theory, as applied in ecology, is incorrect? a) Feedback loops (both positive and negative) are common in ecological systems. b) Components of ecological systems are interconnected c) Ecological systems exhibit emergent properties that are not seen in any individual component in isolation. d) Ecological systems are static in response to changes in any component.arrow_forwardNOTE: The image you need to see in order to answer this question is attachedA developer owns the property encompassing the three habitats above. By law, one of the habitats must be left intact to satisfy the zoning laws. The developer works with an environmental engineer to choose which of the habitats should be saved. The environmental engineer suggests that Site C should be saved. Which of the following choices best justifies this decision?Responses A) Site C has greater species richness and species evenness than either Site A or Site B. This will promote the maximum sustainability for future generations of animals. B) Site C is tied with Site A for greatest species richness, but unlike Site A, it has representative species from all 3 of the sites within it. C) Site C not only contains the greatest number of species, it also has the greatest genetic diversity within each species. D) Site C has more unique species in it than either Site A or Site Barrow_forwardAnswer the following: 1. How does biodiversity provide for people’s medical needs? 2. How do researches that utilize biodiversity affect the community? 3. Why are the cultural tradition of the community important in consuming or using the goods sourced from biodiversity? 4. How do business and development affect biodiversity?arrow_forward
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