click below
click below
Normal Size Small Size show me how
EcologyFinal2012fml
this is crap.
Question | Answer |
---|---|
Using scientific information from chemistry and biology to devise a plan to clean up a lake and make it healthy again describes | environmental science. |
Why is the world's loss of biodiversity a source of concern? | Humans depend on other organisms for food and oxygen. |
Indefinite existence of human populations in a healthy and prosperous condition is | A sustainable world |
Amount of land and ocean area needed to support one person | Ecological footprint |
A resident of _____ is likely to leave the largest ecological footprint. | the United States |
Listing both the merits and expenses involved in implementing a particular environmental solution is an example of a | cost-benefit analysis. |
The introduction of harmful levels of chemicals or wastes into the environment is called | pollution. |
Rapid population growth, poverty, and reduced life expectancy are all characteristic of ___________ countries. | Developing |
The applied science that focuses on the environmental effects of human activities is called | Environmental science |
Newspapers and human sewage are examples of ________ pollutants. | Degradable |
The three major categories of environmental problems are: loss of biodiversity, pollution, and ______________. | Resource depletion |
What is the main reason that species are being lost to extinction? | Because of how many pollutants there are in the world today. Also, we are destroying our environment and taking away the habitats of a lot of species. |
A process in which energy from the sun is used to make sugar molecules is called ___________. | Photosynthesis |
Organisms that get their food by breaking down dead organisms are called _________. | Decomposers |
A process within the cell of an organism that uses glucose and oxygen to produce carbon dioxide, water, and energy is called __________. | Cellular respiration |
How do lichens contribute to primary succession? | Lichens begin to break down rock to form soil. |
What type of vegetation would you expect to find on an abandoned farm that has been undisturbed by humans for 150 years? | tall, mature oak trees. |
Evidence of excessive fertilizer use | algal bloom |
A final and stable community | climax community |
A type of succession that occurs on abandoned farmland | old-field succession |
A gradual process of change and replacement of the types of species in a community | ecological succession |
What is the ultimate source of energy for almost all organisms except those living deep in the ocean near a thermal vent? | the sun |
Nitrogen-fixing bacteria live within the nodules on the roots of plants called __________. | legumes |
Some natural disasters such as _____________ help forest communities by allowing some trees to release their seeds, by clearing away deadwood, and by encouraging new growth. | forest fires |
Bright light | Emergent layer |
Filtered light | Canopy |
Dense shade | Understory |
Near the equator | Tropical rain forest |
Arctic | Taiga |
Coniferous trees are commonly found in which biome? | Taiga |
Birth rate minus death rate | growth rate |
Maximum population an ecosystem can support indefinitely | Carrying capacity |
An example of a population would be all | Red maple trees in a forest |
The number of individuals per unit area | the density of a population |
______ is not an example of a parasite. | A cow in a pasture. |
THe relationship between a Canadian lynx, and a snowshoe hare is an example of | predator and prey. |
Which interaction is where neither species is harmed? | Commensalism |
Thick fur in deer is not an example of coevolution because | thick fur evolved in response to a cold climate, not in response to other organisms. |
The study of population | demography |
Land that can be used to grow crops | arable land |
Average number of years a person is likely to live | life expectancy |
An increase in water-borne diseases could possibly be alleviated by | adequate sewage treatment facilities for growing populations |
Between 1880 and 1930 human populations doubled due to A. the Industrial Revolution B. a combo of high birth rates and lowered death rates. C. improvements in societal infrastructure and services. D. All of the above | D |
What is a reason that wood is considered a limited resource in many developing countries? | People cut down trees faster than they can grow. |
Since 1970, fertility rates have | decreased in more-developed and increased in less0developed countries. |
What is not a strategy that would reduce population size? | limiting education for women. |
The movement of individuals into a population | immigration |
The advancement of technology due to the use of machines | industrialization |
An increase in population could result from increased birth rate, increased ___________, or immigration. | survivorship |
The study of human population patterns is called ____________. | demography |
The United Nations has designated _____________ countries to be given priority for foreign aid. | developing |
Many demographers predict a ___________ population growth rate and a world population of _________ in 2050. | medium ; 9 billion |
An adequate supply of fuelwood helps to prevent disease by allowing water to be boiled to _____________ it. | sterilize |