NEX Prep Science Exam Question &
Answers ( Latest 2026)
A material that settles out of a reaction is termed a(n)
Precipitate
Emulsion
Suspension
Colloid - CORRECT ANSWERS ✔✔Precipitate
The scientific name of the wolf is Canis lupus. The name
indicates the wolf's
Phylum and genus
Kingdom and genus
Genus and species
Phylum species - CORRECT ANSWERS ✔✔Genus and
species
A pharmaceutical company is testing a new drug to help
with insomnia before it is put on the market. For the test,
a placebo was given to 1000 test subjects in Group 1. The
sleeping pill was given to 1000 subjects in Group 2. In this
experiment the subjects in Group 1 served as the
,NEX Prep Science Exam Question &
Answers ( Latest 2026)
Control
Hypothesis
Independent variable
Dependent variable - CORRECT ANSWERS ✔✔Control
What is the recommended amount of water that an
individual should drink each day?
8 ounces
32 ounces
16 ounces
64 ounces - CORRECT ANSWERS ✔✔64 ounces
Which of these structures contains valves to prevent
blood from flowing in the wrong direction?
Arteries
Lymph ducts
Veins
Capillaries - CORRECT ANSWERS ✔✔Veins
, NEX Prep Science Exam Question &
Answers ( Latest 2026)
A method for determining the blood alcohol content of a
subject is to
Inspect the size of the pupils
Use a breathalyzer
Do a D-dimer test
Do a Mantoux test - CORRECT ANSWERS ✔✔Use a
breathalyzer
All living cells contain cytoplasm. Cytoplasm is important
because it
Controls what moves in and out of the cell
Carries hereditary traits
Is where most of the cell's chemical reactions take place
Produces protein - CORRECT ANSWERS ✔✔Is where
most of the cell's chemical reactions take place
Within a living cell, the oxygen (O2) from a mixture of O2
and carbon dioxide (CO2) is used up. This creates a
concentration gradient across the cell membrane,
drawing O2 across the membrane from the outside in, a
process known as
Answers ( Latest 2026)
A material that settles out of a reaction is termed a(n)
Precipitate
Emulsion
Suspension
Colloid - CORRECT ANSWERS ✔✔Precipitate
The scientific name of the wolf is Canis lupus. The name
indicates the wolf's
Phylum and genus
Kingdom and genus
Genus and species
Phylum species - CORRECT ANSWERS ✔✔Genus and
species
A pharmaceutical company is testing a new drug to help
with insomnia before it is put on the market. For the test,
a placebo was given to 1000 test subjects in Group 1. The
sleeping pill was given to 1000 subjects in Group 2. In this
experiment the subjects in Group 1 served as the
,NEX Prep Science Exam Question &
Answers ( Latest 2026)
Control
Hypothesis
Independent variable
Dependent variable - CORRECT ANSWERS ✔✔Control
What is the recommended amount of water that an
individual should drink each day?
8 ounces
32 ounces
16 ounces
64 ounces - CORRECT ANSWERS ✔✔64 ounces
Which of these structures contains valves to prevent
blood from flowing in the wrong direction?
Arteries
Lymph ducts
Veins
Capillaries - CORRECT ANSWERS ✔✔Veins
, NEX Prep Science Exam Question &
Answers ( Latest 2026)
A method for determining the blood alcohol content of a
subject is to
Inspect the size of the pupils
Use a breathalyzer
Do a D-dimer test
Do a Mantoux test - CORRECT ANSWERS ✔✔Use a
breathalyzer
All living cells contain cytoplasm. Cytoplasm is important
because it
Controls what moves in and out of the cell
Carries hereditary traits
Is where most of the cell's chemical reactions take place
Produces protein - CORRECT ANSWERS ✔✔Is where
most of the cell's chemical reactions take place
Within a living cell, the oxygen (O2) from a mixture of O2
and carbon dioxide (CO2) is used up. This creates a
concentration gradient across the cell membrane,
drawing O2 across the membrane from the outside in, a
process known as
