NLN Practice Questions / 148 Q&A/ A+ Score Solution| 2025 LATEST
UPDATED
1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of heat
energy. The final temperatures of X and Y are 15°C and 20°C, respectively. Compared to X, Y
must have a lower
specific heat.
conductive heat.
heat of fusion.
heat of vaporization. - (answers)specific heat.
A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a
large number of swimming paramecium. Under this condition, which of these behaviors of the
paramecia will be observed?
They will eventually all swim toward the ammonium hydroxide.
They will show no net change in behavior to the ammonium hydroxide.
They will all be instantly killed by the ammonium hydroxide.
They will eventually all swim away from the ammonium hydroxide. - (answers)They will
eventually all swim away from the ammonium hydroxide.
A method for determining the blood alcohol content of a subject is to
do a Mantoux test.
do a Dick test.
use a Breathalyzer.
inspect the size of the pupils. - (answers)use a Breathalyzer.
A physician measures the pulse and blood pressure (BP) of all patients on a routine basis. Which
of these measurements show the normal BP values for a resting adult patient?
125/95 mm Hg
120/80 mm Hg
,100/80 mm Hg
72/120 mm Hg - (answers)120/80 mm Hg
A woman suddenly chokes on a piece of food and clutches frantically at her throat. An
immediate remedy is to
have her bend forward and tell her to cough.
insert a finger or a blunt object toward the back of the mouth.
apply quick, hard pressures successively to her abdomen, just beneath her diaphragm.
phone "emergency" for help - (answers)apply quick, hard pressures successively to her
abdomen, just beneath her diaphragm.
An unknown gas is more dense than air, does not support combustion, and turns a limewater
solution cloudy. This gas is most probably
ammonia.
methane.
carbon dioxide.
hydrogen. - (answers)carbon dioxide
If the medulla of the brain in a human was damaged, which of these conditions would most
likely result?
Inability to remember.
Difficulty in breathing.
Inability to speak.
Blurred vision. - (answers)Difficulty in breathing.
In diagnostic testing, the electroencephalogram permits the physician to
examine the impulses of the specialized muscle cells of the heart.
examine the impulses of the nerve cells within the brain.
measure the pressure within the eye.
,measure the amount of air upon exhalation. - (answers)examine the impulses of the nerve cells
within the brain.
In ecological succession, the first living thing to colonize a hitherto barren area is called a
producer.
primary consumer.
pioneer organism.
carnivore. - (answers)pioneer organism.
In varieties of matter, the term heterogeneous may be applied to
elements, but not compounds.
compounds, but not elements.
compounds and elements, but not mixtures.
mixtures, but not elements or compounds. - (answers)mixtures, but not elements or compounds.
Periodontitis is an inflammatory condition of the
gum tissue that surrounds the neck of each tooth.
pulp that contains nerve cells and blood vessels of the tooth.
dentin that surrounds the soft part of a tooth.
enamel that provides a hard surface for chewing. - (answers)gum tissue that surrounds the neck
of each tooth.
The atoms of an element with seven valence electrons are most probably classified as
metals.
nonmetals.
metalloids.
noble gases. - (answers)metals.
The bending of a wave around an obstacle is known as
, diffraction.
deflection.
refraction.
reflection. - (answers)diffraction.
The inherited factors that are transmitted in an organism from generation to generation are called
its
homozygote.
heterozygote.
genotype.
phenotype. - (answers)genotype.
The organ that filters metabolic waste from the blood is the
small intestine.
liver.
kidney.
stomach. - (answers)kidney.
The process of nuclear cell division in the cell reproduction of plants differs from mammals. A
major difference is that
homologous chromosomes are paired.
centrioles are replicated.
spindle fibers are missing.
cell plates are synthesized. - (answers)homologous chromosomes are paired
In animals, the cell is split from the outside by a contractile ring, forming a cleavage furrow. A
layer of actin and myosin filaments underneath the plasma membrane at the cell center begins to
contract until the cell is essentially pinched in half. In plants, a new cell wall forms inside the cell
that grows outward until the formation of two new cells. The assembly of a new cell wall forms
by vesicles filled with cellulose and lignin, which eventually fuse together to create a new cell
wall, and the parent cell splits in two.
UPDATED
1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of heat
energy. The final temperatures of X and Y are 15°C and 20°C, respectively. Compared to X, Y
must have a lower
specific heat.
conductive heat.
heat of fusion.
heat of vaporization. - (answers)specific heat.
A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a
large number of swimming paramecium. Under this condition, which of these behaviors of the
paramecia will be observed?
They will eventually all swim toward the ammonium hydroxide.
They will show no net change in behavior to the ammonium hydroxide.
They will all be instantly killed by the ammonium hydroxide.
They will eventually all swim away from the ammonium hydroxide. - (answers)They will
eventually all swim away from the ammonium hydroxide.
A method for determining the blood alcohol content of a subject is to
do a Mantoux test.
do a Dick test.
use a Breathalyzer.
inspect the size of the pupils. - (answers)use a Breathalyzer.
A physician measures the pulse and blood pressure (BP) of all patients on a routine basis. Which
of these measurements show the normal BP values for a resting adult patient?
125/95 mm Hg
120/80 mm Hg
,100/80 mm Hg
72/120 mm Hg - (answers)120/80 mm Hg
A woman suddenly chokes on a piece of food and clutches frantically at her throat. An
immediate remedy is to
have her bend forward and tell her to cough.
insert a finger or a blunt object toward the back of the mouth.
apply quick, hard pressures successively to her abdomen, just beneath her diaphragm.
phone "emergency" for help - (answers)apply quick, hard pressures successively to her
abdomen, just beneath her diaphragm.
An unknown gas is more dense than air, does not support combustion, and turns a limewater
solution cloudy. This gas is most probably
ammonia.
methane.
carbon dioxide.
hydrogen. - (answers)carbon dioxide
If the medulla of the brain in a human was damaged, which of these conditions would most
likely result?
Inability to remember.
Difficulty in breathing.
Inability to speak.
Blurred vision. - (answers)Difficulty in breathing.
In diagnostic testing, the electroencephalogram permits the physician to
examine the impulses of the specialized muscle cells of the heart.
examine the impulses of the nerve cells within the brain.
measure the pressure within the eye.
,measure the amount of air upon exhalation. - (answers)examine the impulses of the nerve cells
within the brain.
In ecological succession, the first living thing to colonize a hitherto barren area is called a
producer.
primary consumer.
pioneer organism.
carnivore. - (answers)pioneer organism.
In varieties of matter, the term heterogeneous may be applied to
elements, but not compounds.
compounds, but not elements.
compounds and elements, but not mixtures.
mixtures, but not elements or compounds. - (answers)mixtures, but not elements or compounds.
Periodontitis is an inflammatory condition of the
gum tissue that surrounds the neck of each tooth.
pulp that contains nerve cells and blood vessels of the tooth.
dentin that surrounds the soft part of a tooth.
enamel that provides a hard surface for chewing. - (answers)gum tissue that surrounds the neck
of each tooth.
The atoms of an element with seven valence electrons are most probably classified as
metals.
nonmetals.
metalloids.
noble gases. - (answers)metals.
The bending of a wave around an obstacle is known as
, diffraction.
deflection.
refraction.
reflection. - (answers)diffraction.
The inherited factors that are transmitted in an organism from generation to generation are called
its
homozygote.
heterozygote.
genotype.
phenotype. - (answers)genotype.
The organ that filters metabolic waste from the blood is the
small intestine.
liver.
kidney.
stomach. - (answers)kidney.
The process of nuclear cell division in the cell reproduction of plants differs from mammals. A
major difference is that
homologous chromosomes are paired.
centrioles are replicated.
spindle fibers are missing.
cell plates are synthesized. - (answers)homologous chromosomes are paired
In animals, the cell is split from the outside by a contractile ring, forming a cleavage furrow. A
layer of actin and myosin filaments underneath the plasma membrane at the cell center begins to
contract until the cell is essentially pinched in half. In plants, a new cell wall forms inside the cell
that grows outward until the formation of two new cells. The assembly of a new cell wall forms
by vesicles filled with cellulose and lignin, which eventually fuse together to create a new cell
wall, and the parent cell splits in two.
