unit 1 biology voacb

Question 1

an organized way of using evidence to learn about the natural world

Answer 1

science

Question 2

process of gathering information about events, or processes in a careful, orderly way

Answer 2

observation

Question 3

information gathered from observations

Answer 3

data

Question 4

logical interpretation based on prior knowledge or experience

Answer 4

inference

Question 5

proposed scientific explanation for a set of observations

Answer 5

hypothesis

Question 6

idea that life could arise from nonliving matter

Answer 6

spontaneous generation

Question 7

only one variable is changed at a time

Answer 7

controlled experiment

Question 8

variable that is deliberately changed

Answer 8

manipulated variable/ independent variable

Question 9

variable that is observed and that changes in response to the manipulated variable

Answer 9

responding variable/ dependent variable

Question 10

evidence from numerous investigations builds up, a particular hypothesis may become so well supported that scientist consider it a

Answer 10

theory

Question 11

science that employs the scientific method to study living things

Answer 11

biology

Question 12

smallest unit of an organism, that can be considered alive

Answer 12

cell

Question 13

keeping conditions inside their bodies a constant

Answer 13

homeostasis

Question 14

two different parents unite to form the first cell of the new organism

Answer 14

sexual reproduction

Question 15

single parent produces offspring that are identical to itself

Answer 15

asexual reproduction

Question 16

combination of chemical reactions through which an organism builds up or breaks down materials

Answer 16

metabolism

Question 17

a signal to which an organism responds

Answer 17

stimuli

Question 18

decimal system of measurement who units are based on certain physical standards and are scaled on multiples of 10

Answer 18

metric system

Question 19

devices that produce magnified images of structures that are too small to see with the unaided eye

Answer 19

microscopes

Question 20

allow light to pass through the specimen and use two lenses to form an image

Answer 20

compound light microscopes

Question 21

use beams of electrons, rather than light to produce images

Answer 21

electron microscopes

Question 22

group of cells, develops from the single original

Answer 22

cell culture

Question 23

used to separate different cell parts

Answer 23

cell fractionation