WGU C190 preparation quiz 1
Questions with complete solution
2026
Which list has the levels of biological organization in the correct order from smallest to largest?
A. Organ system, community, population, ecosystem, organism
B. Cell, macromolecules, tissue, organ system, organism
C. Ecosystem, population, organism, macromolecules
D. Cell, tissue, organ systems, organism, population - correct answer ✔D. Cell, tissue, organ systems,
organism, population
Which of the following is biotic?
A. Virus
B. Rock
C. Dead flower
D. Plastic - correct answer ✔C. Dead Flower
In an ionic bond, what happens to the electrons?
A. They are shared equally between the atoms.
B. They are lost by one atom and gained by another.
C. They are transferred from the nucleus to the electron cloud.
D. They remain stationary between the two atoms. - correct answer ✔B. They are lost by one atom
and gained by another.
Which statement describes hydrogen bonds correctly?
, A. Creates a moderately strong electrostatic attraction between oppositely charged ions.
B. Occurs between atoms in the same molecule.
C. Electron pairs shared, creating a weak bond.
D. Weak electrostatic attraction between areas of molecules with opposite partial charge. - correct
answer ✔D. Weak electrostatic attraction between areas of molecules with opposite partial charge.
You're hiking in a forest, and you notice that water droplets merge together into larger drops. What
property of water is responsible for this phenomenon? *
A. Cohesion
B. Adhesion
C. Maintaining a stable temperature
D. Low surface tension - correct answer ✔A. Cohesion
What is the monomer of carbohydrates?
A. Amino acid
B. Nucleotide
C. Fatty acid
D. Monosaccharide - correct answer ✔D. Monosaccharides
Which of the following statements accurately describes DNA and RNA?
A. DNA is single-stranded, while RNA is double-stranded.
B. DNA contains uracil (U), while RNA contains thymine (T).
C. DNA uses deoxyribose as its sugar, while RNA uses ribose.
D. Both DNA and RNA use all of the same nucleotide bases. - correct answer ✔C. DNA uses
deoxyribose as its sugar, while RNA uses ribose.
Questions with complete solution
2026
Which list has the levels of biological organization in the correct order from smallest to largest?
A. Organ system, community, population, ecosystem, organism
B. Cell, macromolecules, tissue, organ system, organism
C. Ecosystem, population, organism, macromolecules
D. Cell, tissue, organ systems, organism, population - correct answer ✔D. Cell, tissue, organ systems,
organism, population
Which of the following is biotic?
A. Virus
B. Rock
C. Dead flower
D. Plastic - correct answer ✔C. Dead Flower
In an ionic bond, what happens to the electrons?
A. They are shared equally between the atoms.
B. They are lost by one atom and gained by another.
C. They are transferred from the nucleus to the electron cloud.
D. They remain stationary between the two atoms. - correct answer ✔B. They are lost by one atom
and gained by another.
Which statement describes hydrogen bonds correctly?
, A. Creates a moderately strong electrostatic attraction between oppositely charged ions.
B. Occurs between atoms in the same molecule.
C. Electron pairs shared, creating a weak bond.
D. Weak electrostatic attraction between areas of molecules with opposite partial charge. - correct
answer ✔D. Weak electrostatic attraction between areas of molecules with opposite partial charge.
You're hiking in a forest, and you notice that water droplets merge together into larger drops. What
property of water is responsible for this phenomenon? *
A. Cohesion
B. Adhesion
C. Maintaining a stable temperature
D. Low surface tension - correct answer ✔A. Cohesion
What is the monomer of carbohydrates?
A. Amino acid
B. Nucleotide
C. Fatty acid
D. Monosaccharide - correct answer ✔D. Monosaccharides
Which of the following statements accurately describes DNA and RNA?
A. DNA is single-stranded, while RNA is double-stranded.
B. DNA contains uracil (U), while RNA contains thymine (T).
C. DNA uses deoxyribose as its sugar, while RNA uses ribose.
D. Both DNA and RNA use all of the same nucleotide bases. - correct answer ✔C. DNA uses
deoxyribose as its sugar, while RNA uses ribose.
