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Biology: The Characteristics of Life + Scientific Method, and Properties of Water Review Flashcards | StudBud
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Biology: The Characteristics of Life + Scientific Method, and Properties of Water Review
Biology: The Characteristics of Life + Scientific Method, and Properties of Water Review
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1
This statement would be which part of the SM: "If I study every day, my grades will go up."
Hypothesis
Inference
Observation
Question
2
What are the two kinds of variables that you need to identify in your experiments?
We don't need to identify variables
Dependent & Responding
Independent & Dependent
Independent & Manipulated
3
Hydro
philic
substances consist of ___ molecules
Nonpolar
Polar
4
Quantitative or Qualitative? Smoothness of the eggs in a carton.
Qualitative
Quantitative
5
What is the smallest unit of life, considered to be fully alive?
cell
organ
atom
DNA
6
Information gathered from watching a plant grow 2cm in a week is called what?
Data
Theory
Variables
Hypothesis
7
How many independent variables can you have during an experiment?
3
as many as you like
0
only 1
8
This statement would be which part of the scientific method: "There is so much snow outside!"
Inference
Question
Observation
Hypothesis
9
The process of keeping internal conditions stable when external conditions change is called ...
evolution
homeostasis
metabolism
stimulus
10
Water's high heat capacity is due to
Hydrogen bonds
Surface tension
Covalent bonding
Neuston
11
An individual organism can evolve over one lifetime.
false
true
12
In what molecule is an organism's genetic code written?
nucleotide
RNA
cells
DNA
13
You touch a hot stove and quickly pull your hand away. What is the stimulus?
pulling away
touching the stove
speed of reaction
14
What process uses chemical reactions in an organism to build up or break down materials?
homeostasis
metabolism
evolution
reproduction
15
What is the dependent variable?
The variable that is not changed
The variable that you purposely manipulate
The variable that is being observed
The variable that responds to the change
16
When the - charge of the oxygen approaches the + charge of hydrogen, a _____ is formed
Covalent bond
Ionic bond
Hydrogen bond
17
Why is it important to carefully write down your instructions in step by step order?
So you get a good grade
To prove your hypothesis correct
So you and others can repeat the experiment to check results
To win the science fair
18
What process occurs when a single organism produces offspring identical to itself?
metabolism
asexual reproduction
homeostasis
sexual reproduction
19
Quantitative or Qualitative? Color of your pool water
Quantitative
Qualitative
20
Capillary action in plants is due to
Heat capacity
Both cohesion and adhesion
Cohesion
Adhesion
21
The water molecule contains ____ atom(s) of oxygen and ____ atom(s) of hydrogen.
2 , 1
2 , 2
1 , 2
1 , 1
22
What is the first step in completing the scientific method?
Draw conclusions
Make observations and ask questions
Design a controlled experiment
Form a hypothesis
23
What is cohesion?
Water molecules bonding to nonpolar molecules
water molecules binding to certain surfaces
Water molecules bonding to other water molecules
Water molecules bonding to other polar molecules
24
Pupils shrink when sudden bright light is beamed into the eye. The light is an example of a ...
stimulus
response
25
Water is a
polar molecule
nonpolar molecule
acid
ion
26
Cells from 2 parents unite to form the first cell of a genetically different organism during...
sexual reproduction
DNA
evolution
asexual reproduction
27
With few variations, life's genetic code is almost identical in every organism on Earth.
true
false
28
What is the controlled or constant variable?
The variable that you purposely manipulate
The variable that is not changed
The variable that responds to the change
The variable that is being observed
29
True or False? Giving as much detail as possible when making observations is unnecessary.
False
True
30
How many controlled variables can you have in an experiment?
3
Only 1
As many as you like
0
31
What is the control group?
The group that changes
The group that responds to the changes
The group that wants everything their own way
The group that is used as a comparison
32
Quantitative or Qualitative? pH levels of your pool water.
Qualitative
Quantitative
33
When you have an infection, your body temperature raises. This is an example of ...
cell specialization
development
homeostasis
metabolism
34
How do you know that your problem or question is valid?
It needs to be a problem that has a yes or no answer
It means a lot to me
It needs to be a problem that has a number answer.
The problem must be testable with an experiment
35
Science is all of the following except:
Provides explanations of the natural world
A way of learning about the world
Knowledge gained through studies
Never changes
36
Hydro
phobic
substances are made up of ____ molecule
Polar
Nonpolar
Ionic
Covalent
37
How confident do you feel in your knowledge of the characteristics of life?
Somewhat confident, but I need study to learn more.
Not confident, yet. I need to study more and ask for help.
I am so confident that I could teach my peers about it.
I am confident in my knowledge and ready for the test.
38
The hydrogen atoms carry a slight ___ charge, while the oxygen atom carries a slight ___charge.
neutral, positive
positive, negative
neutral, negative
negative, positive
39
What is adhesion?
The energy to change a substance from one form to another
Water bonding with other water molecules
Water bonding with nonpolar molecules
Water bonding against another surface
40
A slight amount of pressure exerted at the surface of water is known as:
osmotic pressure
surface tension
adhesion
heat capacity
41
True or False? A scientific theory is "just a theory" and doesn't need to be taken seriously.
False
True
42
The scientific method is all of the following except:
Used everyday
Uses several steps
Used to solve problem
Used only by scientists
43
For an organism to be considered a living thing, it must have ALL the characteristics of life.
false
true
44
What is the chemical formula for water?
HO2
OH
H2O2
H2O
45
True or False: Water is a poor solvent
True
False
46
Which of the following is an example of development?
a tree trunk widens
a fish becomes larger
a tadpole becomes a frog
47
Water can dissolve ____ substances
Hydrophobic
Hydrophilic
48
When is a hypothesis created?
After results are communicated
Before making observations and asking questions.
Before the experiment is performed.
After the experiment is performed.
49
What is the independent variable?
The variable that responds to the change
the variable that is being observed
the variable that you purposely manipulate
the variable that is not changed
50
Quantitative or Qualitative? Number of eggs in a carton.
Quantitative
Qualitative
