Homework Questions 1&2
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Who is credited for articulating the conservation ethic and for founding the U.S. Forest Service?
Gifford Pinchot
______ gives inherent value to certain living things or to the biotic (living) realm of the earth in general; both human and nonhuman lives have ethical standing.
Biocentrism
The process by which several researchers review another researcher’s manuscript prior to publication to ensure research quality is referred to as ________.
Peer Review
In a controlled experiment, ________.
The researcher controls for the effects of all variables except one.
Academic environmental programs that emphasize the social sciences are often called ________ programs.
Environmental Studies
To determine your specific impacts on the environment, you can ________.
calculate your ecological footprint
Today there are about___
8 Billion people on earth
None renewable resources include all but:
Wind
Issues of ________ are environmental issues whose dimensions include differential exposure to risk from toxic wastes and air pollution or differential access to the natural beauty of parks based on ethnicity or race.
environmental justice
Ruben has a new puppy and wants to feed it the best possible food. He decides on an experiment where he will feed it the very best canned food plus a dietary supplement of vitamins recommended by a veterinarian. Which of the following best describes Ruben’s project?
This is not an experiment there are no controls or replicas
Secondary Succesion____
Occurs after a fire or flood.
Which of the following is an example of resource partitioning?
Two species of birds forage together, with one eating insects on tree trunks while the other eats insects in the outer branches.
A coyote, which can alter its food intake to match seasonal abundance of plants, fruits, or small animals, is considered to be ________.
A generalist
The energy content and biomass of ________ is lowest in any terrestrial food web.
Top Carnivores
When the organisms of a particular population seek habitats or resources that are unevenly spaced, the distribution of the individuals in the population tends to be ________.
Clumped
Grazing animals such as deer are___.
primary consumers
The relationship between flowering plants and bees is best described as ________.
mutualism
A niche specialist is ________.
more likely to go extinct than a niche generalist
A trophic cascade is the effect of ________ on ________.
top consumers; lower trophic levels
Carrying capacity is the ________.
maximum sustainable population size that a given environment can support
The species-area relationship describes the ___________.
relationship between habitat area and the number of species in that area
Biological nitrogen fixation is carried out by ________.
specialized bacteria
Which ethical perspective ascribes value to nature only to the extent that it benefits humans?
Anthropocentrism
Which statement accurately describes the atomic structure?
The electron orbits the dense center of the atom, which consists of protons and neutrons.