Living Environment Regents Exam Practice
Questions with Accurate Answers
Which human activity most directly causes a
significant increase in the amount of carbon
dioxide in the atmosphere? - -driving cars long distances
-An immune response is primarily due to the
body's white blood cells recognizing - -foreign antigens
-In an effort to reduce the number of deaths due
to malaria, scientists have successfully introduced
a gene into mosquitoes. The gene makes the
mosquitoes unable to support the development
of the parasite that causes malaria. The technique
used to produce this new variety of mosquito is
most likely - -genetic engineering
-The organic compounds that scientists use to cut,
copy, and move segments of DNA are - -enzymes
-A factor that provides
energy for living organisms is - -the Sun
-Genetic researchers have discovered a number
of different gene mutations that have led to
the development of cancer. These mutations
affect how frequently a cell reproduces. Which
process would be directly influenced by these
mutations? - -mitotic cell division
-Lobsters are crustaceans related to crayfish,
crabs, and shrimp. Most lobsters are a reddishbrown color, but on rare occasions, they can
be
orange, blue, or even multicolored. These color
differences can be caused by - -genetic variations
-Which two factors could lead to the evolution of
a species over time? - -changes in the genes of sex cells and survival
of the fittest
-As human red blood cells mature, they lose their
nuclei. As a result of this loss, which process
would be impossible for mature red blood cells
,to carry out? - -reproduction
-To clone a mammal, a cloned embryo is often
put into an adult female of the same species to
continue internal development. The structure in
which the embryo will develop is the - -uterus
-Nuclear power plants, which produce electrical
energy, use large quantities of water for cooling.
Often, small fish, larvae, and fish eggs are sucked
in along with the cooling water and destroyed.
This example illustrates how - -industrialization can have positive and
negative effects
-Acid rain is a major problem in the Adirondack
Mountains. Evidence that acid rain negatively
affected the Adirondack ecosystem is that - -there has been a decrease in the variety of
fish found in Adirondack lakes
-Which system in a multicellular organism
functions most like the cytoplasm in a singlecelled organism? - -circulatory
-The ATP molecule is commonly used to - -actively transport molecules in an organism
-Fat molecules typically contain long chains of
carbon atoms. Animals tend to store fats for
use when food resources are scarce. This is an
advantage to the animal because - -much energy can be gained by breaking the
bonds between atoms in the fats
-While looking at the bottom surface of a leaf with
a compound light microscope, a student notices
pairs of cells with openings between them on the
surface of the leaf. The main purpose of these
openings and the cells that surround them is - -regulating gas exchange
-An immune response to a usually harmless
environmental substance is known as - -an allergy
-Scientists at Penn State have sequenced the
DNA of the extinct woolly mammoth. The data
suggested that the woolly mammoth was more
closely related to present-day elephants than
previously believed. - -Present-day species developed from earlier,
different species.
, -Single-celled organisms are able to maintain
homeostasis, even though they lack higher levels
of organization such as organs and organ systems,
because - -cell structures work together to maintain
homeostasis in single-celled organisms
-Sharks are often followed by smaller fish that eat
some of the scraps from the organisms eaten by
the shark. These smaller fish are acting as - -scavengers
-Under the supervision of experts, certain areas
in a nature preserve are regularly exposed to
frequent, low-intensity fires. These controlled
fires maintain specific populations of plants by
directly - -interfering with the process of ecological
succession
-An invasive species, the spiny water fl ea, was
recently found in a New York lake. These water
fleas eat zooplankton, a food also consumed by
native fishes. The fleas spread from lake to lake
by attaching to fishing lines, anchor ropes, and
boats. Which statement best describes the effect
of the water fl ea on the lake? - -It will feed on organisms that are important
to other species.
-A stable ecosystem can have high biodiversity
because each species in that ecosystem - -occupies a different niche
-Stability within an ecosystem is achieved partially
by the presence of organisms that break down
important molecules and make them available
for other organisms to use. These organisms are - -decomposers
-Higher blood sugar-Pancreas secretes more hormone-Lower blood sugar-Pancreas
secretes
less hormone (Then it repeats) The hormone referred to in this feedback mechanism is - -
insulin
-A student designed an experiment to determine if air temperature had an effect on the
rate of photosynthesis in corn plants. Which tool is correctly paired with a procedure that
could be used during this experiment? - -a graduated cylinder to measure 30 mL of water
for each plant daily
-A student designed an experiment to determine if air temperature had an effect on the
Questions with Accurate Answers
Which human activity most directly causes a
significant increase in the amount of carbon
dioxide in the atmosphere? - -driving cars long distances
-An immune response is primarily due to the
body's white blood cells recognizing - -foreign antigens
-In an effort to reduce the number of deaths due
to malaria, scientists have successfully introduced
a gene into mosquitoes. The gene makes the
mosquitoes unable to support the development
of the parasite that causes malaria. The technique
used to produce this new variety of mosquito is
most likely - -genetic engineering
-The organic compounds that scientists use to cut,
copy, and move segments of DNA are - -enzymes
-A factor that provides
energy for living organisms is - -the Sun
-Genetic researchers have discovered a number
of different gene mutations that have led to
the development of cancer. These mutations
affect how frequently a cell reproduces. Which
process would be directly influenced by these
mutations? - -mitotic cell division
-Lobsters are crustaceans related to crayfish,
crabs, and shrimp. Most lobsters are a reddishbrown color, but on rare occasions, they can
be
orange, blue, or even multicolored. These color
differences can be caused by - -genetic variations
-Which two factors could lead to the evolution of
a species over time? - -changes in the genes of sex cells and survival
of the fittest
-As human red blood cells mature, they lose their
nuclei. As a result of this loss, which process
would be impossible for mature red blood cells
,to carry out? - -reproduction
-To clone a mammal, a cloned embryo is often
put into an adult female of the same species to
continue internal development. The structure in
which the embryo will develop is the - -uterus
-Nuclear power plants, which produce electrical
energy, use large quantities of water for cooling.
Often, small fish, larvae, and fish eggs are sucked
in along with the cooling water and destroyed.
This example illustrates how - -industrialization can have positive and
negative effects
-Acid rain is a major problem in the Adirondack
Mountains. Evidence that acid rain negatively
affected the Adirondack ecosystem is that - -there has been a decrease in the variety of
fish found in Adirondack lakes
-Which system in a multicellular organism
functions most like the cytoplasm in a singlecelled organism? - -circulatory
-The ATP molecule is commonly used to - -actively transport molecules in an organism
-Fat molecules typically contain long chains of
carbon atoms. Animals tend to store fats for
use when food resources are scarce. This is an
advantage to the animal because - -much energy can be gained by breaking the
bonds between atoms in the fats
-While looking at the bottom surface of a leaf with
a compound light microscope, a student notices
pairs of cells with openings between them on the
surface of the leaf. The main purpose of these
openings and the cells that surround them is - -regulating gas exchange
-An immune response to a usually harmless
environmental substance is known as - -an allergy
-Scientists at Penn State have sequenced the
DNA of the extinct woolly mammoth. The data
suggested that the woolly mammoth was more
closely related to present-day elephants than
previously believed. - -Present-day species developed from earlier,
different species.
, -Single-celled organisms are able to maintain
homeostasis, even though they lack higher levels
of organization such as organs and organ systems,
because - -cell structures work together to maintain
homeostasis in single-celled organisms
-Sharks are often followed by smaller fish that eat
some of the scraps from the organisms eaten by
the shark. These smaller fish are acting as - -scavengers
-Under the supervision of experts, certain areas
in a nature preserve are regularly exposed to
frequent, low-intensity fires. These controlled
fires maintain specific populations of plants by
directly - -interfering with the process of ecological
succession
-An invasive species, the spiny water fl ea, was
recently found in a New York lake. These water
fleas eat zooplankton, a food also consumed by
native fishes. The fleas spread from lake to lake
by attaching to fishing lines, anchor ropes, and
boats. Which statement best describes the effect
of the water fl ea on the lake? - -It will feed on organisms that are important
to other species.
-A stable ecosystem can have high biodiversity
because each species in that ecosystem - -occupies a different niche
-Stability within an ecosystem is achieved partially
by the presence of organisms that break down
important molecules and make them available
for other organisms to use. These organisms are - -decomposers
-Higher blood sugar-Pancreas secretes more hormone-Lower blood sugar-Pancreas
secretes
less hormone (Then it repeats) The hormone referred to in this feedback mechanism is - -
insulin
-A student designed an experiment to determine if air temperature had an effect on the
rate of photosynthesis in corn plants. Which tool is correctly paired with a procedure that
could be used during this experiment? - -a graduated cylinder to measure 30 mL of water
for each plant daily
-A student designed an experiment to determine if air temperature had an effect on the
