Bio 110 Ecosystems
Which of the following most accurately describes the setting that created the need for antiknock compounds in gasoline and new refrigerants in air conditioners and refrigerators, as described in the video?
They were needed to meet the growing demands of American consumerism.
What is the largest hierarchical level that global warming affects?
biosphere
How did Thomas Midgley get lead poisoning?
by inhaling the lead-based gasoline additive in an effort to show it was safe
What does the Kanapaha Wastewater Treatment Facility use to disinfect the treated water?
chlorine
A typical wind farm in the United States consists of __________.
many very large wind turbines clustered in a region with a low human population
Which decade had, or is projected to have, the highest annual population increase?
1980-1990
The year 2030 goal set by the US Department of Energy is to generate __________.
20% of electricity using wind-powered systems
Which of the following is NOT an example of emergent properties?
A few sodium and chloride ions can interact with each other to form ionic bonds and a small crystal of salt. But if many sodium and chloride ions form ionic bonds, the crystal can get very large
Why do we classify lionfish populations near the eastern United States as an invasive species? What suggests that these new populations are not an expansion of the lionfish's natural range?
Lionfish are native to the tropical Pacific. There are no natural water routes of warm water between the Pacific and Atlantic oceans.
Based upon what we are learning about the lionfish diet, what is most likely going to happen to Caribbean coral reefs invaded by lionfish?
There will be fewer algae eating fish. More algae will grow over and damage corals.
What was wrong with the old refrigerants used in air conditioners and refrigerators, prompting Midgley's work with new refrigerants?
They were dangerous, even explosive, if they leaked.
The study of the interaction of organisms with each other and their environment involves non-living factors, also called _________________, and living factors, which are referred to as __________________.
abiotic components; biotic components
In a grassy pine savannah, a longer interval between prescribed burns typically leads to _____.
bigger woody species
Which of the following products of a wastewater treatment facility is often put on farm fields as a fertilizer?
biosolids
Based upon what we are learning about invasive lionfish populations in the Caribbean and along the Atlantic coast of the United States, these lionfish populations __________.
cannot be eliminated by any means currently known
Which of the following diseases has been all but eliminated from the United States because of wastewater treatment plants?
cholera
Where does settling of solids occur at a wastewater treatment facility?
clarifier
A scientist is studying how sea slugs respond to predators. Which hierarchical level of ecology does this represent?
community
To measure primary productivity in a grassland ecosystem, you should _____.
exclude consumers; periodically mow, collect, and weigh the plants; and calculate plant biomass production per unit time
Producing electricity using wind instead of fossil fuels __________.
generates no carbon dioxide in the process
In the ecosystem energy budget, primary productivity is like _____.
income
Which hierarchical level is represented by a survey of students and their habits?
population
In an open and grassy pine savannah, fires _____.
prevent the development of a hardwood forest
If a home uses a large supply of solar panels to generate electricity, but has no battery system, surplus electricity that is produced is usually __________.
released into the power grid for others to use, generating a credit to the homeowner
Which of the following was NOT a consideration when choosing tetraethyl lead as an antiknock compound?
the effect on the human health
Which of the following is a challenge to using solar-generated electricity in places not connected to a power grid?
the lack of efficient and inexpensive battery technology
Electricity in a wind turbine is generated __________.
when spinning magnets move past a coil of copper wire
What component of weather is watched most closely when determining when to conduct a prescribed burn?
relative humidity
Although there is evidence that shows that the planet is already warmer than it has been in the recent past, we do not know the extent to which increases in the greenhouse gas concentrations in the atmosphere will affect the climate of the planet. If we (as a global population) decide to follow the precautionary principle, what action would we take?
We would cut the production and release of greenhouse gases immediately, even if we do not yet know the extent to which our production of these gases is altering the climate.
A young, growing calf kept in ideal conditions consumes 100 pounds of grain. As a result, you would expect the calf to put on about _____ pounds of biomass.
10-15
You set up a wildlife park that is designed to simulate African grassland. You calculate that the park's area will support 1,000 medium-sized grazing herbivores. You also want to be able to keep a lion population going without supplemental feeding. What is the approximate maximum population of lions that the herbivores might support, assuming that each lion's biomass is equivalent to a single herbivore's?
100
About how long have wastewater treatment plants been in existence?
120 years
According to this graph, the world population doubled between _______.
1930 and 1975
What is the environmental effect of releasing CFCs into the atmosphere?
CFCs eventually break down, and damage the ozone layer in the stratosphere.
In the solar panel system presented in the video, which of the following was necessary to generate usable electrical current for a home?
DC power had to be converted to AC.
The rate of human population growth is increasing.
Not supported
Which of the following best describes the energy conversion sequence in the solar panel system described in the video?
Photons carrying energy from the sun chemically react with silicon crystals to generate a flow of electrons.
Which one of the following statements about prescribed burns is true?
Some species of pine trees require fire to reproduce.
During the 20th century, the human population increased from less than 2 billion to more than 6 billion.
Supported
From 1500 to 2010, the human population approximately followed the exponential growth model.
Supported
Total population size is projected to increase through the middle of the 21st century.
Supported
What is represented by the distance between two vertical white gridlines on this graph?
The number of people added to the population annually in each decade
What characteristics of lionfish contribute to their ability to spread and become established in new areas?
A single lionfish female may produce up to 2 million eggs a year. The eggs float for up to a month, spreading the lionfish populations.
How did the fish biologists determine the diet of lionfish in the regions where the lionfish have invaded?
Biologists examined the contents of the stomachs of lionfish caught in the wild.
One hundred vegetarian residents of a farming village raise various crops for their own consumption on a parcel of land. They satisfy all of their food needs from the land. An investor purchases the land, evicts the farmers, and converts the land to pasture. Assuming that the primary productivity of the pasture grass equals that of the crops that were previously grown, how many people might be supported on a diet of beef produced by the ranch?
at most 10
You accidentally flush your cell phone. Where will it most likely be found at a wastewater treatment facility?
bar screen
The ultimate source of energy that drives wind power is __________.
the sun
