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