1|Page
NLN PAX Science Practice Tests| High
Quality Questions With Verified
Answers 2026
The amplitude of a sound wave is most closely related to its: - correct-answer-
loudness
The calorie and the kilocalorie are units of : - correct-answer-energy
The force of gravity on an object is that object's: - correct-answer-weight
The Law of Dominance was proposed by which of the following scientists? -
correct-answer-Mendel
,2|Page
The number of complete waves which pass a point in one second is known as a : -
correct-answer-frequency
The vertical columns on the periodic chart are known as: - correct-answer-groups
When a sperm and egg join to form a zygote in humans, what determines the sex
of the child that is produced? - correct-answer-The sperm
When two atoms *share* a pair of electrons, the bond between them is called: -
correct-answer-covalent
When your muscles atrophy, they: - correct-answer-waste away
,3|Page
Which of these organisms has the most complex digestive system? - correct-
answer-Earthworm
Which of these processes occurs at a neuromuscular junction? - correct-answer-
Impulse transmission
Which of these processes is used to free contaminated water of bacteria? -
correct-answer-Treating it with chlorine
Which of these organisms might be found in contaminated well water? - correct-
answer-Giardia
Which of these is the correct sequence of chambers through which blood flows in
the human heart and lungs? - correct-answer-Right atrium, right ventricle, lungs,
left atrium, left ventricle
, 4|Page
Which of these changes occurs in the kidneys when a person becomes
dehydrated? - correct-answer-The filtration rate of water remains constant and
the reabsorption of water increases.
When a population is in Hardy-Weinberg equilibrium, which of these conditions
must be present? - correct-answer-The population is isolated from other
populations
Water freezes at 0C. On the Kelvin temperature scale, this is equivalent to: -
correct-answer-273K
To determine the optimum conditions for the activity of a digestive enzyme, it
would be necessary to test its activity over a range of: - correct-answer-
temperature, pH and substrate concentration
NLN PAX Science Practice Tests| High
Quality Questions With Verified
Answers 2026
The amplitude of a sound wave is most closely related to its: - correct-answer-
loudness
The calorie and the kilocalorie are units of : - correct-answer-energy
The force of gravity on an object is that object's: - correct-answer-weight
The Law of Dominance was proposed by which of the following scientists? -
correct-answer-Mendel
,2|Page
The number of complete waves which pass a point in one second is known as a : -
correct-answer-frequency
The vertical columns on the periodic chart are known as: - correct-answer-groups
When a sperm and egg join to form a zygote in humans, what determines the sex
of the child that is produced? - correct-answer-The sperm
When two atoms *share* a pair of electrons, the bond between them is called: -
correct-answer-covalent
When your muscles atrophy, they: - correct-answer-waste away
,3|Page
Which of these organisms has the most complex digestive system? - correct-
answer-Earthworm
Which of these processes occurs at a neuromuscular junction? - correct-answer-
Impulse transmission
Which of these processes is used to free contaminated water of bacteria? -
correct-answer-Treating it with chlorine
Which of these organisms might be found in contaminated well water? - correct-
answer-Giardia
Which of these is the correct sequence of chambers through which blood flows in
the human heart and lungs? - correct-answer-Right atrium, right ventricle, lungs,
left atrium, left ventricle
, 4|Page
Which of these changes occurs in the kidneys when a person becomes
dehydrated? - correct-answer-The filtration rate of water remains constant and
the reabsorption of water increases.
When a population is in Hardy-Weinberg equilibrium, which of these conditions
must be present? - correct-answer-The population is isolated from other
populations
Water freezes at 0C. On the Kelvin temperature scale, this is equivalent to: -
correct-answer-273K
To determine the optimum conditions for the activity of a digestive enzyme, it
would be necessary to test its activity over a range of: - correct-answer-
temperature, pH and substrate concentration
