Vocabulary words 1-25 Flashcards
abiotic
An environmental factor not associated with the activities of living organisms
acceleration
A rate of change in velocity involving alteration of speed or direction
accuracy
The range in which a measurement is within expected value
acid
A substance that increases the concentration of H+ in a water solution
activation energy
The least amount of energy required to start a chemical reaction
adaption
A trait or behavior developed by an animal to improve its chances of survival, in response to its environment
air resistance
the force of air on an object
allele
The variation of gene given for a trait
amplitude
The maximum absolute variations of a periodic function (ie. a wave)
aqueous
A solution containing water
asexual reproduction
The production of offspring without the involvement of another partner
astronomical unit
The approximate distance from the Earth to the Sun
atmosphere
The layer of gases surrounding a celestial body
atom
The smallest unit of a chemical element still containing the properties of that element
atomic number
The number of protons in the nucleus of an atom, used to discern placement of an element on the periodic table
axis
The imaginary line on which an object rotates
base
A substance that increases the concentration of OH- in a solution, is a proton acceptor
biodiversity
The existence of a wide range of different species in a given area or time
biome
A complex biotic community marked by the interaction of living organisms and their environment
bitoic
Environmental factors associated with, caused, or produced by a living organism
calorie
A unit of energy; the energy it takes to heat one gram of water one degree Celsius
carnivore
A consumer that obtains its nutrients from animals
catalyst
A reactant that speeds up a chemical reaction
centrifugal
Motion away from the axis or center
