ATI TEAS Test -- Science Practice
Solutions with 100% Correct Answers
D-BALL AND SOCKET - Correct Answer Which of the following synovial joints is shown
in this image?
A. Plane
B. Hinge
C. Pivot
D. Ball-and-socket
A- GENES ARE DNA SEQUENCES FOUND ON CHROMOSOMES - Correct Answer
Which of the following statements correctly describes the relationship between genes
and chromosomes?
A. Genes are DNA sequences found on chromosomes
B. Chromosomes contain genes composed of amino acids
C. Chromosomes are DNA sequences found on genes
D. Genes contain chromosomes composed of amino acids
C - Correct Answer Which of the following will likely happen in the case of blocked and
injured ureters?
A. Frequent urination
B. No urine formation
C. Reduced flow of urine to the bladder
D. Bladder stretches due to an increase in urine volume
A - Correct Answer A student observes that when the mercury rises and falls in a
thermometer, the particles do not stick to the sides of the glass tube. However, when
honey is poured from one glass container to another, the particles stick to the walls of
the container. Which of the following explains the observation?
A. Mercury is more cohesive and less adhesive than honey
B. Mercury is less cohesive and more adhesive than honey
C. Mercury is less cohesive and less adhesive than honey
D. Mercury is more cohesive and more adhesive than honey
A - Correct Answer Acid reflux is a condition in which the gastric juices of the stomach
flow backward into the esophagus. Which of the following causes acid reflux?
A. The cardiac sphincter does not close tightly
B. Peristalsis occurs slowly in the esophagus
C. Excess gastric juices are produced by the stomach
D. The pH value for gastric juices is increased
,B - Correct Answer In human blood types, A and B alleles are codominant and O is
recessive. Which of the following combinations of the parents' genotypes has the
highest probability of producing a child with blood type O?
A. Both parents are heterozygous and have blood type AB
B. One parent is heterozygous for blood type A and the other is heterozygous for blood
type B
C. One parent is homozygous for blood type A and the other is homozygous for blood
type O
D. One parent has blood type AB and the other is homozygous for blood type O
B -- Density is a ratio of material present in a given volume. Water will have the same
density whether in a bucket or in a cup. It is independent of the amount of material.
Therefore, it is an intensive property - Correct Answer If an intensive property is
independent of the amount of material being measured, which of the following is an
example of an intensive property?
A. Mass
B. Density
C. Volume
D. Length
A - Correct Answer Which of the following procedures is an appropriate negative control
for testing the hypothesis that air contains bread mold spores?
A. Seal slices of bread in a container to mineralize air contact
B. Place slices of bread in a refrigerated environment
C. Add ingredients to the bread recipe that will slow mold growth
D. Expose a different mold-supporting medium to air
D - Correct Answer A student wants to study how friction affects the distance traveled
by a marble on a surface. A marble was pushed on four different surfaces with the same
force and the time taken for it to travel 1 meter was noted. What experimental term is
used to define the condition of pushing the marble with same force on all four surfaces?
A. Data collection
B. Dependent variable
C. Independent variable
D. Experimental constant
D -- Photosynthesis occurs in many prokaryotes and eukaryotes, where areas oxidative
respiration occurs in only aerobic prokaryotes and eukaryotes
** Explanation: Photosynthesis occurs in bacteria, certain protists, and plants. Oxidative
respiration occurs in aerobes (bacteria and fungi), animals, plants, and protists - Correct
, Answer Which of the following statements is correct regarding the organisms in which
photosynthesis and oxidative respiration occur?
A. Photosynthesis occurs only in plants, whereas oxidative respiration occurs in all life
forms
B. Photosynthesis occurs in many prokaryotes and some eukaryotes, whereas oxidative
respiration occurs only in aerobic eukaryotes
C. Photosynthesis occurs only in plants, whereas oxidative respiration occurs only in
animals
D. Photosynthesis occurs in many prokaryotes and eukaryotes, whereas oxidative
respiration occurs in only aerobic prokaryotes and eukaryotes
C -- Organ
the cross-section shows different types of tissue in a cross-section of the small
intestines, which is a digestive organ - Correct Answer Which level of hierarchy does
the cross-section represent
A. Cell
B. Tissue
C. Organ
D. Organ system
A -- Often scientists will make such a working hypothesis and assume an entity that fits
the observed data. This strategy allows for experimental testing - Correct Answer "Dark
matter" is a form of energy proposed to explain the repulsive forces between matter in
the universe. It has never been observed directly. Which of the following is the best
rationale for many scientists' contention that it exists?
A. It serves as a working hypothesis to explain real observations in the universe
B. A basic scientific principle is to consider everything possible until proven otherwise
C. Since light energy exists in the universe, dark energy must also exist
D. Light energy from distant stars is very faint because it is absorbed by dark energy
C - Correct Answer Which of the following is the value of the prefix milli- in the metric
system?
A. 10^-6
B. 1000
C. 10^-3
D. 0.1
B --Polar Covalent bonds
Nitrogen is more electronegative than hydrogen, leading to an unequal sharing of
electrons, which is the definition of polar covalent bonds - Correct Answer Which of the
following chemical bonds is found within a molecule of ammonia, NH3, given that N is a
highly electronegative element and has a valence of 5?
Solutions with 100% Correct Answers
D-BALL AND SOCKET - Correct Answer Which of the following synovial joints is shown
in this image?
A. Plane
B. Hinge
C. Pivot
D. Ball-and-socket
A- GENES ARE DNA SEQUENCES FOUND ON CHROMOSOMES - Correct Answer
Which of the following statements correctly describes the relationship between genes
and chromosomes?
A. Genes are DNA sequences found on chromosomes
B. Chromosomes contain genes composed of amino acids
C. Chromosomes are DNA sequences found on genes
D. Genes contain chromosomes composed of amino acids
C - Correct Answer Which of the following will likely happen in the case of blocked and
injured ureters?
A. Frequent urination
B. No urine formation
C. Reduced flow of urine to the bladder
D. Bladder stretches due to an increase in urine volume
A - Correct Answer A student observes that when the mercury rises and falls in a
thermometer, the particles do not stick to the sides of the glass tube. However, when
honey is poured from one glass container to another, the particles stick to the walls of
the container. Which of the following explains the observation?
A. Mercury is more cohesive and less adhesive than honey
B. Mercury is less cohesive and more adhesive than honey
C. Mercury is less cohesive and less adhesive than honey
D. Mercury is more cohesive and more adhesive than honey
A - Correct Answer Acid reflux is a condition in which the gastric juices of the stomach
flow backward into the esophagus. Which of the following causes acid reflux?
A. The cardiac sphincter does not close tightly
B. Peristalsis occurs slowly in the esophagus
C. Excess gastric juices are produced by the stomach
D. The pH value for gastric juices is increased
,B - Correct Answer In human blood types, A and B alleles are codominant and O is
recessive. Which of the following combinations of the parents' genotypes has the
highest probability of producing a child with blood type O?
A. Both parents are heterozygous and have blood type AB
B. One parent is heterozygous for blood type A and the other is heterozygous for blood
type B
C. One parent is homozygous for blood type A and the other is homozygous for blood
type O
D. One parent has blood type AB and the other is homozygous for blood type O
B -- Density is a ratio of material present in a given volume. Water will have the same
density whether in a bucket or in a cup. It is independent of the amount of material.
Therefore, it is an intensive property - Correct Answer If an intensive property is
independent of the amount of material being measured, which of the following is an
example of an intensive property?
A. Mass
B. Density
C. Volume
D. Length
A - Correct Answer Which of the following procedures is an appropriate negative control
for testing the hypothesis that air contains bread mold spores?
A. Seal slices of bread in a container to mineralize air contact
B. Place slices of bread in a refrigerated environment
C. Add ingredients to the bread recipe that will slow mold growth
D. Expose a different mold-supporting medium to air
D - Correct Answer A student wants to study how friction affects the distance traveled
by a marble on a surface. A marble was pushed on four different surfaces with the same
force and the time taken for it to travel 1 meter was noted. What experimental term is
used to define the condition of pushing the marble with same force on all four surfaces?
A. Data collection
B. Dependent variable
C. Independent variable
D. Experimental constant
D -- Photosynthesis occurs in many prokaryotes and eukaryotes, where areas oxidative
respiration occurs in only aerobic prokaryotes and eukaryotes
** Explanation: Photosynthesis occurs in bacteria, certain protists, and plants. Oxidative
respiration occurs in aerobes (bacteria and fungi), animals, plants, and protists - Correct
, Answer Which of the following statements is correct regarding the organisms in which
photosynthesis and oxidative respiration occur?
A. Photosynthesis occurs only in plants, whereas oxidative respiration occurs in all life
forms
B. Photosynthesis occurs in many prokaryotes and some eukaryotes, whereas oxidative
respiration occurs only in aerobic eukaryotes
C. Photosynthesis occurs only in plants, whereas oxidative respiration occurs only in
animals
D. Photosynthesis occurs in many prokaryotes and eukaryotes, whereas oxidative
respiration occurs in only aerobic prokaryotes and eukaryotes
C -- Organ
the cross-section shows different types of tissue in a cross-section of the small
intestines, which is a digestive organ - Correct Answer Which level of hierarchy does
the cross-section represent
A. Cell
B. Tissue
C. Organ
D. Organ system
A -- Often scientists will make such a working hypothesis and assume an entity that fits
the observed data. This strategy allows for experimental testing - Correct Answer "Dark
matter" is a form of energy proposed to explain the repulsive forces between matter in
the universe. It has never been observed directly. Which of the following is the best
rationale for many scientists' contention that it exists?
A. It serves as a working hypothesis to explain real observations in the universe
B. A basic scientific principle is to consider everything possible until proven otherwise
C. Since light energy exists in the universe, dark energy must also exist
D. Light energy from distant stars is very faint because it is absorbed by dark energy
C - Correct Answer Which of the following is the value of the prefix milli- in the metric
system?
A. 10^-6
B. 1000
C. 10^-3
D. 0.1
B --Polar Covalent bonds
Nitrogen is more electronegative than hydrogen, leading to an unequal sharing of
electrons, which is the definition of polar covalent bonds - Correct Answer Which of the
following chemical bonds is found within a molecule of ammonia, NH3, given that N is a
highly electronegative element and has a valence of 5?
