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