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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
Cells from 2 parents unite to form the first cell of a genetically different organism during...
sexual reproduction
evolution
DNA
asexual reproduction
2
This statement would be which part of the SM: "If I study every day, my grades will go up."
Inference
Question
Hypothesis
Observation
3
In what molecule is an organism's genetic code written?
cells
DNA
nucleotide
RNA
4
Water can dissolve ____ substances
Hydrophobic
Hydrophilic
5
Information gathered from watching a plant grow 2cm in a week is called what?
Hypothesis
Data
Theory
Variables
6
You touch a hot stove and quickly pull your hand away. What is the stimulus?
touching the stove
pulling away
speed of reaction
7
Hydro
phobic
substances are made up of ____ molecule
Ionic
Nonpolar
Covalent
Polar
8
The water molecule contains ____ atom(s) of oxygen and ____ atom(s) of hydrogen.
1 , 1
2 , 2
1 , 2
2 , 1
9
What is adhesion?
Water bonding with nonpolar molecules
The energy to change a substance from one form to another
Water bonding with other water molecules
Water bonding against another surface
10
Hydro
philic
substances consist of ___ molecules
Polar
Nonpolar
11
Quantitative or Qualitative? Number of eggs in a carton.
Qualitative
Quantitative
12
What is the control group?
The group that is used as a comparison
The group that responds to the changes
The group that wants everything their own way
The group that changes
13
What are the two kinds of variables that you need to identify in your experiments?
Independent & Manipulated
Independent & Dependent
Dependent & Responding
We don't need to identify variables
14
How many controlled variables can you have in an experiment?
0
As many as you like
3
Only 1
15
When the - charge of the oxygen approaches the + charge of hydrogen, a _____ is formed
Covalent bond
Hydrogen bond
Ionic bond
16
Pupils shrink when sudden bright light is beamed into the eye. The light is an example of a ...
response
stimulus
17
Quantitative or Qualitative? Color of your pool water
Qualitative
Quantitative
18
Water is a
nonpolar molecule
polar molecule
ion
acid
19
What process occurs when a single organism produces offspring identical to itself?
sexual reproduction
metabolism
asexual reproduction
homeostasis
20
What is the independent 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
21
An individual organism can evolve over one lifetime.
true
false
22
When you have an infection, your body temperature raises. This is an example of ...
metabolism
cell specialization
development
homeostasis
23
Water's high heat capacity is due to
Surface tension
Neutrons
Covalent bonding
Hydrogen bonds
24
True or False? Giving as much detail as possible when making observations is unnecessary.
True
False
25
The scientific method is all of the following except:
Used everyday
Used to solve problem
Used only by scientists
Uses several steps
26
True or False: Water is a poor solvent
True
False
27
The process of keeping internal conditions stable when external conditions change is called ...
metabolism
evolution
homeostasis
stimulus
28
The hydrogen atoms carry a slight ___ charge, while the oxygen atom carries a slight ___charge.
positive, negative
neutral, positive
neutral, negative
negative, positive
29
A slight amount of pressure exerted at the surface of water is known as:
osmotic pressure
surface tension
adhesion
heat capacity
30
Science is all of the following except:
A way of learning about the world
Never changes
Provides explanations of the natural world
Knowledge gained through studies
31
Why is it important to carefully write down your instructions in step by step order?
To win the science fair
To prove your hypothesis correct
So you get a good grade
So you and others can repeat the experiment to check results
32
What is cohesion?
Water molecules bonding to nonpolar molecules
water molecules binding to certain surfaces
Water molecules bonding to other polar molecules
Water molecules bonding to other water molecules
33
What is the smallest unit of life, considered to be fully alive?
cell
atom
DNA
organ
34
What process uses chemical reactions in an organism to build up or break down materials?
homeostasis
evolution
reproduction
metabolism
35
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
36
What is the first step in completing the scientific method?
Design a controlled experiment
Draw conclusions
Make observations and ask questions
Form a hypothesis
37
With few variations, life's genetic code is almost identical in every organism on Earth.
true
false
38
Which of the following is an example of development?
a fish becomes larger
a tree trunk widens
a tadpole becomes a frog
39
What is the chemical formula for water?
H2O
H2O2
OH
HO2
40
How many independent variables can you have during an experiment?
3
0
only 1
as many as you like
41
For an organism to be considered a living thing, it must have ALL the characteristics of life.
false
true
42
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
43
What is the dependent variable?
The variable that is being observed
The variable that you purposely manipulate
The variable that responds to the change
The variable that is not changed
44
True or False? A scientific theory is "just a theory" and doesn't need to be taken seriously.
True
False
45
Quantitative or Qualitative? pH levels of your pool water.
Quantitative
Qualitative
46
Quantitative or Qualitative? Smoothness of the eggs in a carton.
Qualitative
Quantitative
47
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.
48
This statement would be which part of the scientific method: "There is so much snow outside!"
Inference
Question
Hypothesis
Observation
49
Capillary action in plants is due to
Cohesion
Adhesion
Heat capacity
Both cohesion and adhesion
