chapter 1 study guide

Question 1

what is the definition of structure?

Answer 1

how something is made

Question 2

what is the word for the purpose of an object?

Answer 2

function

Question 3

what makes up the structure of something?

Answer 3

materials and shape

Question 4

change in structure = change in what?

Answer 4

function

Question 5

what is the difference in cows teeth vs our based on structure?

Answer 5

cows have more molers than humans and no teeth on top

Question 6

what does PMC stand for?

Answer 6

program, metabolism, container

Question 7

DNA is a part of what part of the PMC model?

Answer 7

program

Question 8

what is the purpose of metabolism?

Answer 8

getting and using energy

Question 9

what does container mean?

Answer 9

taking up a defined space

Question 10

how does structure determine function?

Answer 10

the materials and shape of something tells you how it will work

Question 11

explain the deference in living and non living things

Answer 11

living things have the whole PMC model and non living things will have one or two

Question 12

energy processing is a what part of the PMC model?

Answer 12

metabolism

Question 13

what is the smallest level of organization?

Answer 13

atom

Question 14

what is the biggest level of organization?

Answer 14

biosphere

Question 15

is population made of one species or multiple?

Answer 15

one

Question 16

how many atoms are in a molecule?

Answer 16

two or more

Question 17

what is the difference of community and ecosystem?

Answer 17

ecosystems have non living things in them

Question 18

what is the difference between biome and biosphere?

Answer 18

biosphere is bigger and contains the whole planet?

Question 19

what are the different base prefixes in order?

Answer 19

giga, mega, kilo, hecto,centi, milli, micro, nano

Question 20

how many cm are in a meter?

Answer 20

100

Question 21

whats the difference between mass and volume?

Answer 21

mass is how much matter something has and volume is how much space it takes up

Question 22

what is median?

Answer 22

the middle number of a given set

Question 23

what prefix goes with the symbol c?

Answer 23

centi

Question 24

what is the dependent variable?

Answer 24

the variable being measured

Question 25

what is the independent variable?

Answer 25

the variable being changed

Question 26

what is the difference between control and experimental groups?

Answer 26

they are identical except the independent variable is being changed in an experimental group

Question 27

what axis would the independent variable go on?

Answer 27

x axis

Question 28

what makes a good hypothesis?

Answer 28

1) specific
2) testable
3) explanatory
4) can use it to make predictions

Question 29

why would you need to do an experiment multiple times?

Answer 29

to make sure the result is more accurate