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Chapter 1 CK12 Flashcards | StudBud
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Chapter 1 CK12
Chapter 1 CK12
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A review of #Chapter1 of the online #CK12 #Biology textbook.
Flashcards
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Questions
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Answers
1
A main difference between a scientific theory and a hypothesis is that
the hypothesis is generally accepted as true
the theory is a possible answer to a scientific question.
the theory has been repeatedly tested and proven.
All of the above
2
A complex chemistry is most related to
detecting changes in the environment.
giving rise to offspring.
chemical changes
maintaining a stable internal environment
3
Which of the following is not true about cells?
They are the basic unit of structure and function of life
All living thing begins life as a single cell
It takes many cells to make a living organism
All living cells always come from other living cells
4
Examples of scientific models include
all of the above
diagram of a food chain
a map of the solar system
a model of an atom showing the nucleus and the electrons
5
Interdependence of organisms explains the concept that living things
cannot live alone.
can be independent organisms.
depend on their environment to supply them resources.
are dependent on other organisms for food.
6
When a scientist makes observations of a phenomena, it helps him/her...
communicate why and how the phenomena is occuring
form a question about the phenomena
gather data without forming an experiment
make conclusions about the phenomena
7
Organism --> Population --> Ecosystem --> Community --> Biome --> Biosphere
wrong
idk
right
8
The scientist most often associated with evolution is
Albert Einstein
Isaac Newton
Charles Darwin
Alfred Wallace
9
The kingdoms of life include which of the following kingdoms?
Archaebacteria, Fungus, Plant, and Protist
Bacteria, Protist, Fish, and Animal
all of the above
Bacteria, Grass, Plant, and Animal
10
A good hypothesis must be
falsifiable
random
true
long
11
Molecules of DNA have instructions that tell cells what to do
false
true
12
An example of a scientific law is the law of
gravity
nature
evolution
relativity
13
The number of different species alive today is a measure of Earth’s
biology
biodiversity
biosphere
biome
14
Which is NOT a characteristic of living things?
respond to the environment
producing offspring
consisting of more than one cell
all are correct
15
Testing a(n) ___ involves performing a(n) ___.
observation, hypothesis
conclusion, prediction
hypothesis, experiment
experiment, observation
16
A cell can best be described as
the smallest characteristic of living things
the smallest unit of function of living things
the basic structural unit necessary for living things.
basic unit of the structure and function of living things
17
The ___ variable is affected by manipulations within an experiment
reliable
dependent
independent
uncontrolled
18
The theory of evolution and cell theory are well-known scientific ___
hypotheses
predicitons
laws
theories
19
The scientific method always begins by asking a question.
false
true
20
Science is based on certain assumptions, including
nature can be understood through systematic study
scientific ideas are open to revision
sound scientific ideas can withstand the test of time.
all of the above.
21
A(n) ____ is used by scientists to gather data in order to evaluate a hypothesis
web page
prediction
experiement
hypothesis
22
An example of a dependent variable in an experiemental study is
the amount of fertilizer given to plants
the amount of light plants are exposed to each day
the amount of water given to plants each day
the amount plants grow under specific conditions
23
A (?) tells what always happens under certain conditions
scientific theory
hypothesis
scientific law
experiment
24
Unifying principles of biology include the cell theory, the gene theory, evolution and
natural selection
reproduction
homeostasis
interdependence of living things
25
The final step in the scientific method is
analyze data
gather data
draw conclusions
communicate results
26
A characteristic that allows an organism to better survive in a certain environment is a(n) ___
hairball
product of natural selection
adaptation
embedded trait
27
Scientists understand that
sound scientific ideas are frequently altered
We can't understand any of the phenomena in nature
science cannot provide the answer to all questions
scientific ideas are fact, and can never be revised
28
Which order of organizational levels is correct, from smallest to largest?
population, community, ecosystem, biome
community, biome, biosphere, ecosystem
biome, ecosystem, community, population
population, community, biosphere, biome
29
Which is the correct order in a scientific investigation?
observations, question, hypothesis, test hypothesis
question, hypothesis, communicate results, conclusions
conclusions, question, hypothesis, test hypothesis
question, observations, test hypothesis, conclusions
30
A scientific theory is
a guess about how or why something happens.
a statement of what ALWAYS happens conditions in nature.
an educated guess
explanation for events that are generally accepted as true
31
The ____ variable is the manipulated variable in an experiment
reliable
dependent
independent
uncontrolled
32
Symbiosis is a close relationship between species in which both organisms always benefit.
false
true
33
A scientific theory is not supported by a great deal of evidence.
false
true
34
science
is not dependent on the scientific method
all of the above
Is used to fully understand everything in nature
is a way of gaining knowledge about the natural world.
35
Over many generations, living things become better adapted to their environment through
development
symbiosis
natural seleciton
homestasis
36
Natural studies can be more difficult than lab studies because scientists
cannot determine the best time of day to collect their data
cannot control which factor is the dependent variable
can't control factors that may affect variables of interest
cannot determine which data to analyze.
37
The gene theory states that living things are
controlled by blood which passes from parents to offspring
controlled by genes which pass from parents to offspring
not influenced directly by parents
influenced by nucleii directly imported to offspring
38
Homeostasis is
the ability to grow and develop
maintaining a stable internal environment.
the ability to give rise to offspring
the ability to respond to changes in their environment
39
An ecosystem consists of both ____ and nonliving things.
natural
thriving
living
humans
40
A good hypothesis is always correct
false
true
41
Science is a way of gaining knowledge about the natural world.
true
false
42
An inference is anything detected through the senses with instruments or measuring devices.
False
True
43
To be classified as a living organism, an object must
have a complex chemistry
all of the above
be made of more than one cell
be able to reproduce sexually
44
Life on Earth was created through a method other than evolution. This statement
is an example of a hypothesis.
can be proved using the scientific method.
is a scientific observation
is outside the realm of science.
45
The best definition of biology is: The science of
life
plants and animals
living organisms
the human body
46
Evolution states that
Giraffes are weird
living things never change
living things do not make adaptations to their environment
all living things change over time
47
A(n) ___ is an individual living thing
cell
atom
element
virus
48
Mr. Lantz will throw up if he eats two trays of Oreos. Is this an acceptable hypothesis?
Yes, it is falsifiable.
Yes, although it cannot be tested.
No, he does that every night anyways.
No, it cannot be tested.
49
Viruses are classified as living organisms because
they maintain homeostais
they reproduce
they are not classified as living organisms
they grow and develop
50
The theory best explains why cells of human beings and chimps share 98% of the same genes is
cell theory
theory of evolution
gene theory
theory of life
