Ch 1 Vocab
Order by
19 terms
Terms | Definitions |
|---|---|
 science | an organized way of gathering an analyzing evidence abt the natural world |
| observation | the act of noticing and describing events or processes in a careful, orderly way |
| inference | a logical interpretation based on what scientists already know |
| hypothesis | a scientific explanation for a set of observations that can be tested in ways that support or reject it |
| controlled experiment | an experiment where only one variable is changed and all others are controlled |
| independent variable | the variable deliberately changed |
| dependent variable | the variable observed |
| control group | an experiment exposed to the same conditions as the controlled experiment, but w/o an independent variable |
| data | information that scientists gather during experiments |
| theory | a well-substantiated explanation of some aspect of the natural world |
| bias | a particular preference or p.o.v. that is personal |
| biology | the study of life |
| DNA | a genetic code that stores the info organisms need to live, grow, and reproduce |
| stimulus | a signal to which an organism responds |
| sexual reproduction | process by which cells from two different parents unite to produce the first cell of a new organism |
| asexual reproduction | a single organism produces offspring identical to itself |
| homeostasis | process by which organisms maintain a relatively stable internal environment |
| metabolism | the combo of chem. reactions through which an organism builds up or breaks down materials |
| biosphere | the regions of the surface and atmosphere of the Earth (or other planet) where living organisms exist |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.