BIOL101 Test Questions with Verified
Answers Graded A+
All living things require and outside source of materials and energy; the sum
total of all chemical reactions that occur within a cell to provide these
materials and energy is called __________. - Ans metabolism
However, for these processes to continue, living things must maintain
___________ or a constant internal environment. - Ans homeostasis
This includes maintaining a stable __________, moisture, level, and acidity. -
Ans temperature
Some organisms depend on _____________ to maintain this constant internal
environment. For example, lizards lounge on rocks in sunny locations to warm
their bodies and seek shade to cool their bodies. - Ans behaviors
Other organisms rely on __________________ to maintain this constant internal
environment. For example, penguins have extra layers of feathers and a layer
of blubber to keep warm and dry in cold, snowy conditions. -
Ans physical modifications
These are both examples of ___________, or modifications that make
organisms suited to their way of life. - Ans adaptations
1
Page
, Levels of classification from least inclusive, to most inclusive... Order, family,
genus, species, phylum, class, kingdom, domain - Ans species, genus,
family, order, class, phylum, kingdom, domain
Scientific experiments
A researcher wants to test his hypothesis that a diet low in fats will lead to a
decrease in LDL cholesterol over several months of time. From the following
list of statements, select those that will lead to the best experimental design. -
Ans All ((except)) for:
Measure the cholesterol level of two randomly chosen men at the onset of
one study.
Prescribe to all patients a carefully regimented diet that contains a variety of
low-fat options, tailored to the caloric needs of each man.
Discard from the results the men whose cholesterol readings did not fit the
hypothesis.
Science and social responsibility
The following are examples of a few of the benefits and costs of using
technology. For each, decide if it describes a cost or a benefit and classify it
accordingly.
2
Page
Answers Graded A+
All living things require and outside source of materials and energy; the sum
total of all chemical reactions that occur within a cell to provide these
materials and energy is called __________. - Ans metabolism
However, for these processes to continue, living things must maintain
___________ or a constant internal environment. - Ans homeostasis
This includes maintaining a stable __________, moisture, level, and acidity. -
Ans temperature
Some organisms depend on _____________ to maintain this constant internal
environment. For example, lizards lounge on rocks in sunny locations to warm
their bodies and seek shade to cool their bodies. - Ans behaviors
Other organisms rely on __________________ to maintain this constant internal
environment. For example, penguins have extra layers of feathers and a layer
of blubber to keep warm and dry in cold, snowy conditions. -
Ans physical modifications
These are both examples of ___________, or modifications that make
organisms suited to their way of life. - Ans adaptations
1
Page
, Levels of classification from least inclusive, to most inclusive... Order, family,
genus, species, phylum, class, kingdom, domain - Ans species, genus,
family, order, class, phylum, kingdom, domain
Scientific experiments
A researcher wants to test his hypothesis that a diet low in fats will lead to a
decrease in LDL cholesterol over several months of time. From the following
list of statements, select those that will lead to the best experimental design. -
Ans All ((except)) for:
Measure the cholesterol level of two randomly chosen men at the onset of
one study.
Prescribe to all patients a carefully regimented diet that contains a variety of
low-fat options, tailored to the caloric needs of each man.
Discard from the results the men whose cholesterol readings did not fit the
hypothesis.
Science and social responsibility
The following are examples of a few of the benefits and costs of using
technology. For each, decide if it describes a cost or a benefit and classify it
accordingly.
2
Page
