click below
click below
Normal Size Small Size show me how
unit 1
| Question | Answer |
|---|---|
| cell | a usually microscopic structure containing nuclear and cytoplasmic material enclosed by a semipermeable membrane and, in plants, a cell wall; the basic structural unit of all organisms |
| experimental group | a group of subjects who are exposed to the variable under study: a lower infection rate in the experimental group that received the vaccine. |
| protein | a substance thought to be the essential nitrogenous component of all organic bodies. |
| dependent variable | . a variable in a functional relation whose value is determined by the values assumed by other variables in the relation, as y in the relation y = 3 x 2 . Compare independent variable ( def. 1 ) . |
| enzyme | any of a group of complex proteins or conjugated proteins that are produced by living cells and act as catalysts in specific biochemical reactions |
| experiment | a test, trial, or tentative procedure; an act or operation for the purpose of discovering something unknown or of testing a principle, supposition, etc.: a chemical experiment; a teaching experiment; an experiment in living. |
| asexual | having no sex or sexual organs |
| data | a plural of datum |
| heterotroph | an organism requiring organic compounds for its principal source of food. |
| homeostasis | a state of psychological equilibrium obtained when tension or a drive has been reduced or eliminated. |
| hypothesis | a proposition assumed as a premise in an argument. |
| independent variable | Mathematics . a variable in a functional relation whose value determines the value or values of other variables, as x in the relation y = 3 x 2 . Compare dependent variable ( def. 1 ) . |
| lipids | any of a group of organic compounds that are greasy to the touch, insoluble in water, and soluble in alcohol and ether: lipids comprise the fats and other esters with analogous properties and constitute, with proteins and carbohydrates, the chief structur |
| qualitative research | Qualitative research is a method of inquiry employed in many different academic disciplines, traditionally in the social sciences, but also in market research and |
| response | any behavior of a living organism that results from an external or internal stimulus. |
| scientific method | method of research in which a problem is identified, relevant data are gathered, a hypothesis is formulated from these data, and the hypothesis is empirically tested. |
| species | the major subdivision of a genus or subgenus, regarded as the basic category of biological classification, composed of related individuals that resemble one another, are able to breed among themselves, but are not able to breed with members of another spe |
| stimulus | something that incites to action or exertion or quickens action, feeling, thought, etc. |