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