Term
| As the world entered the 21st century, the population reached how many billion people? |
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Definition
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Term
| Environmental sustainability implies... |
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Definition
1. the actions of humans directly impact the well-being of the natural environment
2. future generations will have the resources necessary for a quality life
2. a shared global responsibility for conservation practices |
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Term
| In developed countries, what percentage of people live in urban areas? |
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Definition
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Term
| "Carrying capacity" refers to |
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Definition
| the maximum number of individuals that can be supported by an ecosystem |
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Definition
| ensures that Earth's resources will remain adequate to support future generations |
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Term
| Biota is a general term used to describe |
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Definition
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Term
| A scientist who first sounded the alarm about the growth of the human population and the ability of the earth to handle a large population of humans was |
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Definition
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Term
| Longevity can be defined as |
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Definition
| genetically determined maximum possible age to which an individual of a particular species can live |
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Term
| e Tsunami of December 2004 killed over 150,000 people. With a world population growth rate of 1.4%, approximately 100,000 people killed by the tsunami were replaced in |
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Definition
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Term
| Which of the following parameters is/are necessary to describe exponential population growth? |
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Definition
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Term
| Which of the following chemicals is most important in the transfer and use of energy within cells? |
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Definition
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Term
| Which of the following elements cycles quickly and is readily regenerated for biological activity? |
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Definition
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Term
| Igneous rock is produced from all of the following except |
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Definition
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Term
| Nitrogen is needed to manufacture which two important biological compounds? |
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Definition
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Term
| What are the four major components of the environment? |
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Definition
| atmosphere, lithosphere, hydrosphere, and biosphere |
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Term
| Which of the following is NOT a way in which carbon dioxide enters the atmosphere? |
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Definition
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Term
| A species upon which the entire ecosystem depends is called a(n) |
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Definition
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Term
| The First Law of Thermodynamics states that |
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Definition
| energy cannot be created or destroyed |
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Term
| The function or important role of a species in an ecosystem is termed its |
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Definition
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Term
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Definition
| aid in limiting the population sizes of their prey |
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Term
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Definition
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Term
| Which of the following characteristics is known to make a species more vulnerable to extinction? |
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Definition
| occupying a small (localized) range |
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Term
| Scientifically, ___________ is expressed as the number of species in an area. |
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Definition
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Term
| How many species have been recovered in the US since the inception of the Endangered Species Act of 1973? |
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Definition
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Term
| A species in imminent danger of extinction throughout all or a significant portion of its range is said to be |
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Definition
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Term
| The goal of restoration ecology is |
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Definition
| returning damaged, degraded, or destroyed ecosystems to a functional, sustainable and natural environment |
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Term
| Which of the following elements is not essential for plant growth and function? |
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Definition
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Term
| Facilitation happens when |
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Definition
| first plant species prepare the way for other species' growth |
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Term
| When species do not interact and succession does not take place, the result is |
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Definition
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Term
| Early succession plants are |
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Definition
| low growing plants that are specifically adapted to unstable conditions of the physical environment |
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Term
| When an ecosystem is disturbed by __________, changes occur in its biogeochemical cycling. |
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Definition
| human activity, storms, and fire. |
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Term
| Strip cutting in a forest is |
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Definition
| the practice of cutting narrow rows of trees, leaving wooded corridors |
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Term
| Tree growth rings are produced at the rate of _______per year. |
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Definition
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Term
| Managing wildlife to keep populations at a constant level is not always successful because: |
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Definition
| populations are naturally variable |
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Term
| Nearly two-thirds of all the wood produced in the world is used for |
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Definition
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Term
| A natural, important ecological function of forests is: |
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Definition
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Term
| _________ founded the US Forest Service and practiced utilitarian conservation of forests |
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Definition
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Term
| Which of the following needs to be considered when harvesting a product from an ecosystem? |
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Definition
A) sustainability of the product
B) the sustainability of the harvest
C) the sustainability of the ecosystem itself |
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Term
| When did the most dramatic increase in the history of the human population occur? |
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Definition
| in the last part of the twentieth century |
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Term
| The most serious problem caused by population growth is: |
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Definition
| increasing demand for all resources |
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Term
| Total world population is |
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Definition
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Term
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Definition
| the time it takes for what is growing to double in size or number |
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Term
| Which of the following examples describes the movement of a nation from a high population growth to a low population growth? |
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Definition
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Term
| Which of the following examples describes the S-shaped curve according to which a population grows rapidly but eventually reaches a constant population? |
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Definition
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Term
| The current United States population has exceeded |
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Definition
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Term
| Which of the following diseases is NOT a chronic disease? |
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Definition
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Term
| A population that has achieved Zero Population Growth has: |
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Definition
| neither increased nor decreased in size |
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Term
| The main unknown factor in any human population growth scenario is |
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Definition
| Earth's carrying capacity |
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Term
| Which of the following chemicals used in agriculture is a potential source of water pollution? |
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Definition
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Term
| Average residence time is short in the: |
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Definition
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Term
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Definition
| creation and destruction of the lithosphere |
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Term
| Photosynthesis involves all of the following except: |
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Definition
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Term
| When studying biogeochemical cycles, it is important to consider the movement of these chemicals through which of the following? |
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Definition
A) land
B) air
C) water and living things |
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Term
| Two of the most important greenhouse gases are: |
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Definition
| carbon dioxide and methane |
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Term
| The simplest environmental unit that can support life is called a(n): |
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Definition
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Term
| The total amount of organic matter in an ecosystem or area is called: |
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Definition
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Term
| An organism's role, or life style, within the structure of an ecosystem is its |
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Definition
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Term
| Which of the following best exemplifies trophic levels in a food web? |
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Definition
| autotroph→heterotroph→decomposer |
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Term
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Definition
| an essential part of ecosystems |
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Term
| Which of the following is not a process that leads to evolution? |
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Definition
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Term
| A species isolated on a remote island can: |
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Definition
| undergo evolutionary divergence |
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Term
| An increase in organic matter________the storage of nutrients. |
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Definition
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Term
| Which plants are the first to grow on abandoned farmlands? |
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Definition
| small annual or perennial plants |
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Term
| Organic matter is very important in soil because it stores: |
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Definition
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Term
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Definition
| a body of water with surface inlets but no surface outlets |
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Term
| Secondary succession occurs: |
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Definition
| with reestablishment of an ecosystem after disturbance |
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Term
| Shelterwood cutting of a forest is |
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Definition
| the practice of cutting less desirable trees first, and later cutting mature trees |
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Term
| Early successional trees regenerate easier with |
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Definition
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Term
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Definition
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Term
| Northern spotted owls make their home in: |
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Definition
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Term
| Current wildlife management practices |
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Definition
| maintain the ecosystem of which the wildlife are part |
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Term
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Definition
| produce much more timber than natural forests |
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