Question 1. 1. Accidental alterations during DNA replication that give rise to v

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Question 1.1. Accidental alterations during DNA replication that give rise to variations in organisms are __________. (Points : 1)        adaptive traits
       mutations
       symbioses
       random distributions Question 2.2. The largest reservoir of carbon in the carbon cycle is comprised of _________. (Points : 1)        freshwater systems and oceans
       plants and animals
       sedimentary rock and fossil fuels
       atmosphere Question 3.3. The principle of utility ________. (Points : 1)        holds that any natural resource should be available for use in manufacturing
       holds that something is right when it produces the greatest benefit for the greatest number of people
       is not an ethical standard
       cannot be used to estimate the value of natural resources Question 4.4. The two processes that determine current biodiversity on a global scale are __________. (Points : 1)        allopatric speciation and immigration
       mutation and habitat selection
       mutation and global climate change
       extinction and speciation Question 5.5. The conservation ethic holds that we should ________. (Points : 1)        exploit natural resources for economic gain regardless of sustainability
       be prudent and efficient in the use of natural resources
       consider the environment the ultimate servant of mankind
       maintain the environment in a pristine, unaltered state Question 6.6. The preservation ethic holds that we should ________. (Points : 1)        be responsible for wise management while using natural resources
       protect areas against development while allowing public access
       harvest natural resources
       maintain the natural environment in a pristine, unaltered state Question 7.7. Trophic levels and food chains diagram __________. (Points : 1)        logistic curves
       energy flow in an ecosystem
       population density
       natural resource fluctuations Question 8.8. A hypothesis is ________. (Points : 1)        a prediction
       an educated guess that explains a phenomenon or answers a question
       an instrument that is used to examine environmental conditions
       the design of an experiment that can be used for the process of science Question 9.9. A biocentric view of the world emphasizes ________. (Points : 1)        the role of corporations in environmental law
       the importance of considering environmental impacts on all living things
       the importance of economics in environmental decisions
       the dual-natured view of humans and animals as environmental controls Question 10.10. Malthus was responsible for ________. (Points : 1)        the book The Population Bomb that described the disastrous effects of human population growth
       the idea that the increase in human population would lead to famine and war
       the concept that human population growth would lead to greater industry and prosperity through education
       instituting fertilizer use for agriculture Question 11.11. Ecology is ________. (Points : 1)        the study of how to solve environmental problems
       the study of organisms and their interactions with each other and the environment
       a subfield of environmentalism
       the study of the E. coli family of bacteria Question 12.12. The scientific process is based on ________. (Points : 1)        observations that researchers keep in a scientific journal
       testing hypotheses built on observation, and revising them based on results
       intuitive understanding of natural laws and processes
       the ancient writings of Heraclitus Question 13.13. Which of the following is an abiotic factor? (Points : 1)        Amphibians
       Wood
       Mammals
       Water Question 14.14. In environmental science, "carrying capacity" means the ___________. (Points : 1)        maximum population size that a given environment can sustain
       average number of viable offspring produced within a population
       potential number of species in a given area
       limitation on the number of species in an ecosystem Question 15.15. The Cuyahoga River made people aware of environmental problems because __________. (Points : 1)        people in many communities became sick when using water from the river
       the drinking water in elementary schools near the river became contaminated
       the river caught on fire
       the river stopped supporting any plant or animal life Question 16.16. The conversion process where nitrogen gas combines with hydrogen to form ammonium ions, which is accomplished through the intense energy of lightening or when air in the top layer of soil comes into contact with certain bacteria, is known as ________. (Points : 1)        the carbon cycle
       nitrogen fixation
       ionic conversation
       bacterial ionization Question 17.17. The fresh water we depend on for survival accounts for approximately __________ of all water on Earth. (Points : 1)        two-thirds
       one-third
       10%
       3% Question 18.18. A paradigm is ________. (Points : 1)        a group of several hypotheses that can be tested together
       a dominant view in science
       the same as a hypothesis
       synonymous with the scientific method Question 19.19. The degree of disorder in a substance, system, or process is called ________. (Points : 1)        chaos
       entropy
       energy
       electricity Question 20.20. A population is defined as ___________. (Points : 1)        a group of individuals of multiple, interacting species that live in a particular area
       a group of similar species that inhabit various ecosystems
       a group of individuals of a single species inhabiting a particular area
       (crude birth rate + immigration rate) - (crude death rate - emigration rate) Question 1.1. Accidental alterations during DNA replication that give rise to variations in organisms are __________. (Points : 1)        adaptive traits
       mutations
       symbioses
       random distributions

Explanation / Answer

Accidental alterations during DNA replication that give rise to variations in organisms are mutations. The largest reservoir of carbon in the carbon cycle is comprised of living things means pants and animals. The principle of utility holds that something is right when it produces the greatest benefit for the greatest number of people. The two processes that determine current biodiversity on a global scale are extinction and speciation. The conservation ethic holds that we should be prudent and efficient in the use of natural resources. The preservation ethic holds that we should maintain the natural environment in a pristine, unaltered state. Trophic levels and food chains diagram represents energy flow in an ecosystem A hypothesis is a prediction. A biocentric view of the world emphasizes the importance of considering environmental impacts on all living things. Malthus was responsible for the idea that the increase in human population would lead to famine and war Ecology is the study of organisms and their interactions with each other and the environment. The scientific process is based on testing hypotheses built on observation, and revising them based on results Water is an abiotic factor In environmental science, "carrying capacity" means the maximum population size that a given environment can sustain. The Cuyahoga River made people aware of environmental problems because the river caught on fire The conversion process where nitrogen gas combines with hydrogen to form ammonium ions, which is accomplished through the intense energy of lightening or when air in the top layer of soil comes into contact with certain bacteria, is known as nitrogen cycle. The fresh water we depend on for survival accounts for approximately one- third of all water on Earth. A paradigm is a group of several hypotheses that can be tested together The degree of disorder in a substance, system, or process is called entropy. A population is defined as a group of individuals of a single species inhabiting a particular area        (crude birth rate + immigration rate) - (crude death rate - emigration rate).

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