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Enviro Exam #1
Terms in this set (65)
noting or pertaining to a class of chemical compounds that formerly comprised only those existing in or derived from plants or animals, but that now includes all other compounds of carbon.
noting or pertaining to compounds that are not hydrocarbons or their derivatives.
compounds of natural origin
noting or pertaining to compounds formed through a chemical process by human agency, as opposed to those of natural origin:
Energy being used
Energy of unstable atoms is lost through radiation
The time required for one half the atoms of a given amount of a radioactive substance to disintegrate.
Law of conservation of matter and energy
Matter and energy cannot be created nor destroyed
1st law of thermodynamics
Conservation of energy
2nd law of thermodynamics
Entropy of a system is always increasing
- measure of the unavailable energy in a closed thermodynamic system - a measure of the system's disorder, that is a property of the system's state, ad that varies directly with any reversible change in heat in the system and inversely with the temperature of the system; broadly : the degree of disorder or uncertainty in a system
A living thing
a class of individuals having common attributes and designated by a common name; specifically : a logical division of a genus or more comprehensive class
The organisms inhabiting a particular locality (2) : a group of interbreeding organisms that represents the level of organization at which speciation begins
An interacting group of various species in a common location.
A group of communities interacting with eachother.
Organisms that make their own food
Organisms that eat other organisms
Organisms that live by breaking down other organisms
Photosynthesis (reactants and products)
6CO2 + 6H2O ------> C6H12O6 + 6O2
Cellular Respiration (reactants and products)
The reverse of photosynthesis
Cellular respiration requiring oxygen for ATP
Respiration without oxygen
A species adapting to its environment
A genetic mishap that changes a trait in a species
Basic unit of heredity
A genetically determined characteristic
a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes
the stock of different genes in an interbreeding population
Organisms living or dying out based on how capable they are to live in their environment. The organisms with the most useful traits survive.
the variety of life in the world or in a particular habitat or ecosystem
The death of a certain species
a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates that move slowly over the underlying mantle
wear away or change the appearance or texture of (something) by long exposure to the air
Change in the distribution of weather channels
a naturally occurring solid aggregate of one or more minerals or mineraloids
A naturally occuring chemical compound
statistics of weather
The increase in Earth's average surface temperature due to greenhouse gases.
the trapping of the sun's warmth in a planet's lower atmosphere due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface
the concentration of toxins in an organism as a result of its ingesting other plants or animals in which the toxins are more widely disbursed
The accumulation of substances, such as pesticides, or other chemicals in an organism
Setting on fire. Needs O2 and creates heat and something else.
hydrogen sulfide gas
( final amount - initial amount / initial amount ) x 100