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bio

QuestionAnswer
a group of independent organisms in a particular environment is an community
organisms that break down complex compounds and dead tissue decomposers
all the living and nonliving things in a selected area form a ecosystem
particular environment to which a particular species is adapted is its habitat
the special role and place of an organism within its habita is its niche
an animal that eats both plants and animals omnivore
members of a single species that occupy a common area form an population
animals that feed only on dead organisms are scavengers
two or more elements chemically combined compound
pure substances which cannot be broken down into other substances by ordinary chemicals element
protein that is a biological catalyst enzyme
molecule that binds to an enzyme substrate
minimum amounts of energy required for reactants to form products activation energy
substance that lowers energy needed to start a chemical reaction catalyst
substances that release hydrogen ions when dissolves in water acid
substances that release hyrdoxiode ions when dissolved in water bases
acids and bases are key substances in biology
the concentration of hydrogen ions in a solution pH
pure water is neutral
weal acids or weak bases that can react with strong acids or strong bases to keep the pH within a particular range buffers
all life on earth biosphere
atoms of the same element that differ in the number of neutrons they contain. isotopes
transfer of electrons- ions ionic
sharing of pair of electrons- molecules covalent
as group of ecosystems that share similar climates and typical organisms. biomine
group of similar organisms that can breed and produce fertile offspring speicies
acids (ions) H+ ions
bases (ions) OH- ions
chemical bonds ionic and covalent
made up of atoms matter
basic unit of matter atoms
macro molecules that contain nitrogen as well as carbon, hydrogen and oxygen protien
 

 



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