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23 Cards in this Set

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Environmental Science
Is interdisciplinary, drawing from both the natural sciences and social sciences
AND
Is the systematic study of our environment and humans’ place in it
In designing a controlled experiment in a scientific study:
You change one independent variable and observe the effect on the dependent variable.
If the probability of flipping a coin and getting heads is 50% (1 in 2) or 0.5, then the probability of flipping a coin and getting heads three times in a row is:
b. 0.5 x 0.5 x 0.5
Scientific theory
well-tested and accepted hypothesis
Hypothesis
conditional explanation that can be tested
Habitat loss
primary cause of species extinctions
Sustainable development
meets current needs without compromising future generations
Chemosynthetic bacteria
primary producers where there is no sunlight
Probability
measure of likelihood
Photosynthesis
most primary producers on Earth can do this
Biomass
this decreases at higher trophic levels
Kinetic energy
the energy of a body in motion
Environment
physical, social and cultural conditions that surround organisms
Endangered Species Act
passed 1973; identifies at-risk species, directs recovery planning, provides landowner aid and enforcement measures
Endangered
species in imminent danger of extinction
Pelagic
Refers to “in the water column”
Climate
long-term atmospheric conditions
Tundra
northernmost biome in the world
Weather
short-term atmospheric conditions
Benthic
Refers to “on the bottom”
Threatened
species likely to become endangered in foreseeable future
Boreal forests
largest land biome on Earth
Biodiversity “hot spots”
Most are near the equator, especially tropical rainforests and coral reefs