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31 Cards in this Set

  • Front
  • Back
A relationship between a producer and consumer is best illustrated by a
zebra eating grass
The third thing scientists argue over is
the consequences of climate change
What are some of the qualities of coal, oil, and natural gas?
They are formed from decayed plants
They are fossil fuels
The release carbon dioxide when they are burned
Ecosystems include only the biotic factors in an area
F
Food charins usually begin with the primary producers
T
Facts about the greenhouse effect
It is real and helps to regulate the temperature of our planet. Water is the most abundant greenhouse gas, followed by carbon dioxide and other trace gases. Without a natural greenhouse effect, the temperature of the Earth would be about 0°F (-18° C) instead of its present 57°F (14°C).
Organisms at higher trophic levels tend to be fewer in number than those at lower trophic levels
T
The physical location of an ecosystem in which a given species lives is called a
habitat
Ecology is the study of the interaction of living organisms
with each other and their physical environment
Abiotic factors of a habitiat include
soil
water
weather
Mr. Luring Biology Chapter 17
Cut apart and study
When an organism dies, the nutrients in its body
are released by the action of decomposers
Food webs are more commonplace than food chains because
organisms almost always eat, and are eaten by, many different organisms
In a food web, which typ of organism receives energy from every other type?
decomposer
Facts about Co2 concentration
Pre-industrial levels of carbon dioxide (prior to the start of the Industrial Revolution) were about 280 parts per million by volume (ppmv), and current levels are about 370 ppmv.
Animals that feed on plants are at least in the
second trophic level
The total dry weight of the organism in an ecosystem is called
biomass
Becasue energy diminishes at each successive trophic level, few ecosystems can contain more then
five trophic levels.
Detritivores are especially harmful to an ecosystem
F
Precipitation and evaporation are important components of
the water cycle
The paths of water, carbon,nitrogen, and phosphorus pass from the non-living environment to living organisms and back to the non-living environment in closed circles called
environcycles
The term ________________ is used to describe the physical area in which an organism lives
habitat
A group of organisms of different species living together in a particular place is called a
community
What are some examples of detritivores?
worms
vultures
fungi
The number of species living within an ecosystem is a measure of its
biodiversity
Carbon is returned to the atmosphere by cellular respiration, combustion, and
erosion
Facts about the sea level
global mean sea level has been rising at an average rate of 1 to2 mm/year over the last 100 years, which is significantly larger than the averaged over the last several thousand years.
Facts about whether the temperature has been rising or not
Global surface temperatures have increased about 0.6°C (plus or minus 0.2°C) since the late-19th century, and about 1.1°C over the past 25 years (the period with the most credible data). The warming has not been globally uniform. Some areas (including parts of the southeastern U.S.) have, in fact, cooled over the last century.
Biotic factors in a habitat include all the physical aspects as well as the living organisms
F
The first thing scientists argue over is
Whether the climate is changing beyond natural variation in the historical temperature record
The second thing scientists argue over
Whether human/industrial activity is responsible for the change and if so, to what extent.