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10 Cards in this Set

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  • Back
how is it possible that some of these carbon atoms - that ur body contains - may have been part of the body of a prehistoric creature
carbon atoms are constantly cycled in living organisms. because we have so many, it is likely that some of them were also a part of some prehistoric organisms
list 6 unique properties of water
1) water molecules are POLAR, making them a GREAT solvent
2) water is the ONLY inorganic liquid that exists at normal temperatures
3) liquid molecules are highly cohesive - which results in capillary action
4) water EXPANDS when it crystallizes so that ice floats
5) water has a HIGH HEAT of vaporization, so we can remove a large amount of heat through evaporation
6) water has a high SPECIFIC heat - making it an ideal medium for storing heat and moderating the earth's temperature
a molecule made up of nucleotides linked together in long chains. it carries the genetic information that codes for protein structure and gives each organism its unique heritable characteristics
in the biosphere, matter follows a CIRCULAR pathway while energy follows a LINEAR pathway
materials ALWAYS cycle in the biosphere because of the law of conservation of matter.

energy flows in a linear pathway due to the 2nd law of thermodynamics [in every energy exchange, some of the energy is converted from higher quality to lower quality]
ecosystems require energy to function. WHERE does this energy come from? where does it go?
for more organisms on the earth's surface, the ultimate source of energy is the sun, and the sink for waste energy is outer space
how do green plants capture their energy and what do they do with it?
They capture solar energy through photosynthesis, a series of chemical reactions that occur in chloroplasts. The energy is captured in this process and it is used to create chemical bonds in organic molecules. these molecules serve both as an energy source and building material for all plants and animals.
___ is made of all the organisms of the same kind that are able to breed under natural conditions and produce live, fertile offspring
___ consists of all the members of a species living in a given area at the same time
a ____ is made up of all the populations of different species living and interacting in a given area at a specific time
biological community
an example of inverted numbers pyramid
a single large tree supporting many herbivorous insects, or a single coyote supporting many parasites