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16 Cards in this Set
- Front
- Back
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Marivn is stress about waking up and making it on time to his mid term. he set his alarm on his digital watch (to 1/100 of a second) and arrives at 9:00:00 am. unfortunately, every other clock on campus ready about 9:10 am. Marvin is ten minutes late to the exam. what can be said about the accuracy and precision of Marvin's watch? |
accurate: not accurate precision: very precise |
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how does total fertility rate (TFR) affect the population growth of a nation?
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total fertility rate reflects the number of children who would be born per woman, the higher the rate the faster population growth will be |
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describe commensalism |
a symbiosis in which one species benefits and the other is neither harmed nor benefited
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owls and hawks prey on similar animals, but hawks hunt by day and owls hunt at bight. what ecological principle is this an example of? |
niche differentiation |
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if a lake is very large and the flow of water into and out of the lake is very slow, what can be said about the residence time of water in the lake?
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the residence time is high
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what does species richness refer to?
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species richness is the number of different species represented in an ecological community |
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what are the 4 R's in waste management?
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reduce, reuse, recycle, repair |
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the early atmosphere of the earth had very little oxygen. which organisms led to the rise of an oxygenated atmosphere? |
cyanobacteria or blue green algae |
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what does the first law of thermodynamics state?
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energy can neither be created nor destroyed
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what is the proportion of the incident light or radiation that is reflected by a surface called? name a surface/ material (that we covered in class) with a very high reflectivity |
it is called albedo examples: snow, ice, or clouds |
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a hurricane approaching from east to west, passing the florida keys can be deflected by which force towards the north east
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coriolis force/ effect |
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if you remove an electron you generate a(n) ___ if you add a neutron to an element you create a(n) ___ if you add a proton to an element you create a(n) ___ |
ion
isotope different element |
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the theory of plate tectonics has been supported by which scientific evidence? (name 3)
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fossil record
older age of rocks further from divergent zones actual measurements of moving plates |
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what are the big 3 crops humans grow and where are they mainly cultured?
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corn - U.S.A rice - Asia wheat - Europe |
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how can you increase the crop yield? (name 3 potential ways)
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use of GMO crops use of pesticides to reduce loss of crops selective breeding of higher yield crops |
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name 3 benefits of using transgenic crops
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cold tolerancedrought tolerance pest tolerance
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