Vocab 1-21

Question 1

Cell

Answer 1

the basic unit of life; it is the smallest unit of an organism that can be considered alive

Question 2

Sexual Reproduction

Answer 2

type of reproduction in which from 2 parents unite to form the first cell of a new organism

Question 3

Asexual Reproduction

Answer 3

process of reproduction involving a single parent; offspring are identical to the parent

Question 4

DNA

Answer 4

genetic material that organisms inherit from their parents

Question 5

Metabolism

Answer 5

the combination of chemical reactions that occur as an organism carries out its life processes

Question 6

Stimulus

Answer 6

any change in an organism’s internal or external environment that causes the organism to react

Question 7

Homeostasis

Answer 7

relatively constant internal physical and chemical conditions that organisms maintain

Question 8

Evolve

Answer 8

change over time

Question 9

Hypothesis

Answer 9

possible explanation that can be tested by further observation or by experimentation

Question 10

Inference

Answer 10

a logical interpretation based on prior knowledge and experience

Question 11

Controlled Experiment

Answer 11

experiment in which only one variable is changed

Question 12

Independent Variable

Answer 12

the one factor that is changed in an experiment

Question 13

Dependent Variable

Answer 13

the factor being observed and/or measured in an experiment and changes in response to the independent variable

Question 14

Control Group

Answer 14

the group exposed to the same conditions as the experimental group except for one independent variable; used for comparison

Question 15

Compound Light Microscope

Answer 15

allows light to pass through the specimen and uses two lenses to form an image

Question 16

Quantitative Data

Answer 16

numbers obtained by counting or measuring

Question 17

Qualitative Data

Answer 17

descriptions of what our senses detect; involve characteristics that can not be measured

Question 18

Theory

Answer 18

well-tested explanation that unites a broad range of observations and hypotheses, enabling scientists to make accurate predictions about new situations

Question 19

Bias

Answer 19

a personal point of view for, or against, something

Question 20

Magnification

Answer 20

how much the image is enlarged

Question 21

Resolution

Answer 21

the ability of a microscope to distinguish detail