WGU C190 OA Bio Study Exam 2025 (Actual Exam) Questions
with verified Answers (Latest Update 2025) UPDATE!! Bio
WGU study for OA c190
acetyl coA - - -------correct answer---------A two-carbon molecule that is an intermediate product
between glycolysis and the Krebs cycle in cellular respiration. Pyruvate from glycolysis is broken
down into acetyl coA, which enters the Krebs cycle and is further broken down.
Adaptation- - -------correct answer---------The adjustment or changes in behavior, physiology, and
structure of an organism to become more suited to an environment.
Adaptation- - -------correct answer---------The adjustment or changes in behavior, physiology, and
structure of an organism to become more suited to an environment.
Aerobic- - -------correct answer---------A process that requires oxygen.
Aerobic- - -------correct answer---------A process that requires oxygen.
Allele - - -------correct answer---------An alternative form of a gene. An example would be genes that
encode eye color—some encode blue eyes (one allele), while others encode brown, green, or hazel
eye colors (other alleles).
Allele -An alternative form of a gene. An example would be genes that encode eye color—some
encode blue eyes (one allele), while others encode brown, green, or hazel eye colors (other alleles). -
-------correct answer---------
amino acids - - -------correct answer---------A small organic molecule with the structure of an amino
group, a carboxylic acid group, and an "R" group, which are all bonded to a single central carbon
atom. The difference between the "R" group is what distinguishes one amino acid from another.
Amino acids are the building blocks of proteins.
amino acids - - -------correct answer---------A small organic molecule with the structure of an amino
group, a carboxylic acid group, and an "R" group, which are all bonded to a single central carbon
atom. The difference between the "R" group is what distinguishes one amino acid from another.
Amino acids are the building blocks of proteins.
,Anaerobic- - -------correct answer---------A process that occurs without oxygen.
Anaerobic- - -------correct answer---------A process that occurs without oxygen.
anaphase I- - -------correct answer---------The third stage of Meiosis I—the two homologous
chromosomes separate and migrate toward opposite poles.
anaphase I- - -------correct answer---------The third stage of Meiosis I—the two homologous
chromosomes separate and migrate toward opposite poles.
anaphase II- - -------correct answer---------The third stage in Meiosis II—the centromeres separate
and the sister chromatids (now individual chromosomes) move toward the opposite poles of the cell.
anaphase II- - -------correct answer---------The third stage in Meiosis II—the centromeres separate
and the sister chromatids (now individual chromosomes) move toward the opposite poles of the cell.
Anaphase- - -------correct answer---------A stage within the mitosis phase of cell division (also known
as cell reproduction). Anaphase starts when sister chromatids separate from each other and ends
when each set of separated, sister chromatids arrives at the opposite poles of the cell.
Anaphase- - -------correct answer---------A stage within the mitosis phase of cell division (also known
as cell reproduction). Anaphase starts when sister chromatids separate from each other and ends
when each set of separated, sister chromatids arrives at the opposite poles of the cell.
and fungi are examples of organisms that reproduce in this manner. - -------correct answer---------
artificial selection- - -------correct answer---------Deliberate mating between two individuals who were
selected based on desired traits.
artificial selection- - -------correct answer---------Deliberate mating between two individuals who were
selected based on desired traits.
,asexual reproduction - - -------correct answer---------A type of reproduction where genetically
identical offspring are created from a single parent. This type of reproduction does not utilize
meiosis or gametes. Bacteria
asexual reproduction - - -------correct answer---------A type of reproduction where genetically
identical offspring are created from a single parent. This type of reproduction does not utilize
meiosis or gametes. Bacteria and fungi are examples of organisms that reproduce in this manner.
Atom- - -------correct answer---------The basic unit of matter that cannot be further broken down
without losing its unique properties. One atom consists of a dense nucleus surrounded by a cloud of
electrons.
Atom- - -------correct answer---------The basic unit of matter that cannot be further broken down
without losing its unique properties. One atom consists of a dense nucleus surrounded by a cloud of
electrons.
autosomal chromosome- - -------correct answer---------A chromosome not involved in sex
determination.
autosomal chromosome- - -------correct answer---------A chromosome not involved in sex
determination.
Autosomal- - -------correct answer---------Describes a trait associated with alleles located on
autosomes (non sex chromosomes).
Autosomal- - -------correct answer---------Describes a trait associated with alleles located on
autosomes (non sex chromosomes).
biogeochemical cycle- - -------correct answer---------The processes that transfer chemical elements
between biotic and abiotic components in an ecosystem. There are several main cycles: the water
cycle, the carbon cycle, the nitrogen cycle, and the phosphorus cycle.
biogeochemical cycle- - -------correct answer---------The processes that transfer chemical elements
between biotic and abiotic components in an ecosystem. There are several main cycles: the water
cycle, the carbon cycle, the nitrogen cycle, and the phosphorus cycle.
, Biome- - -------correct answer---------A large naturally occurring community of plants and animals
occupying a major habitat. Examples include tropical forest and arctic tundra.
Biome- - -------correct answer---------A large naturally occurring community of plants and animals
occupying a major habitat. Examples include tropical forest and arctic tundra.
Biomes- - -------correct answer---------A pattern of distribution of ecosystems across the globe, where
similar environmental conditions lead to similar animal and plant adaptations. Examples of biomes
include tropical rainforests, deserts, and tundra.
Biomes- - -------correct answer---------A pattern of distribution of ecosystems across the globe, where
similar environmental conditions lead to similar animal and plant adaptations. Examples of biomes
include tropical rainforests, deserts, and tundra.
biosphere- - -------correct answer---------All areas on, within, and around the planet Earth that are
capable of supporting life.
biosphere- - -------correct answer---------All areas on, within, and around the planet Earth that are
capable of supporting life.
Calvin cycle (Calvin-Ben - -------correct answer---------son cycle or light-independent reaction)- The set
of chemical reactions that take place in chloroplasts during photosynthesis. The cycle is light-
independent because it takes place after the energy has been captured from sunlight. Also called
Calvin-Benson Cycle, Benson-Calvin Cycle.
Calvin cycle (Calvin-Benson cycle or light-independent reaction)- - -------correct answer---------The set
of chemical reactions that take place in chloroplasts during photosynthesis. The cycle is light-
independent because it takes place after the energy has been captured from sunlight. Also called
Calvin-Benson Cycle, Benson-Calvin Cycle.
Carbohydrates- - -------correct answer---------The extracellular surface of the cell membrane is
decorated with carbohydrate groups attached to lipids and proteins. These short carbohydrates play
a role in giving a cell its identity (i.e., distinguishing self from non-self) and are the distinguishing
factor in human blood types.
Carbohydrates- - -------correct answer---------The extracellular surface of the cell membrane is
decorated with carbohydrate groups attached to lipids and proteins. These short carbohydrates play
with verified Answers (Latest Update 2025) UPDATE!! Bio
WGU study for OA c190
acetyl coA - - -------correct answer---------A two-carbon molecule that is an intermediate product
between glycolysis and the Krebs cycle in cellular respiration. Pyruvate from glycolysis is broken
down into acetyl coA, which enters the Krebs cycle and is further broken down.
Adaptation- - -------correct answer---------The adjustment or changes in behavior, physiology, and
structure of an organism to become more suited to an environment.
Adaptation- - -------correct answer---------The adjustment or changes in behavior, physiology, and
structure of an organism to become more suited to an environment.
Aerobic- - -------correct answer---------A process that requires oxygen.
Aerobic- - -------correct answer---------A process that requires oxygen.
Allele - - -------correct answer---------An alternative form of a gene. An example would be genes that
encode eye color—some encode blue eyes (one allele), while others encode brown, green, or hazel
eye colors (other alleles).
Allele -An alternative form of a gene. An example would be genes that encode eye color—some
encode blue eyes (one allele), while others encode brown, green, or hazel eye colors (other alleles). -
-------correct answer---------
amino acids - - -------correct answer---------A small organic molecule with the structure of an amino
group, a carboxylic acid group, and an "R" group, which are all bonded to a single central carbon
atom. The difference between the "R" group is what distinguishes one amino acid from another.
Amino acids are the building blocks of proteins.
amino acids - - -------correct answer---------A small organic molecule with the structure of an amino
group, a carboxylic acid group, and an "R" group, which are all bonded to a single central carbon
atom. The difference between the "R" group is what distinguishes one amino acid from another.
Amino acids are the building blocks of proteins.
,Anaerobic- - -------correct answer---------A process that occurs without oxygen.
Anaerobic- - -------correct answer---------A process that occurs without oxygen.
anaphase I- - -------correct answer---------The third stage of Meiosis I—the two homologous
chromosomes separate and migrate toward opposite poles.
anaphase I- - -------correct answer---------The third stage of Meiosis I—the two homologous
chromosomes separate and migrate toward opposite poles.
anaphase II- - -------correct answer---------The third stage in Meiosis II—the centromeres separate
and the sister chromatids (now individual chromosomes) move toward the opposite poles of the cell.
anaphase II- - -------correct answer---------The third stage in Meiosis II—the centromeres separate
and the sister chromatids (now individual chromosomes) move toward the opposite poles of the cell.
Anaphase- - -------correct answer---------A stage within the mitosis phase of cell division (also known
as cell reproduction). Anaphase starts when sister chromatids separate from each other and ends
when each set of separated, sister chromatids arrives at the opposite poles of the cell.
Anaphase- - -------correct answer---------A stage within the mitosis phase of cell division (also known
as cell reproduction). Anaphase starts when sister chromatids separate from each other and ends
when each set of separated, sister chromatids arrives at the opposite poles of the cell.
and fungi are examples of organisms that reproduce in this manner. - -------correct answer---------
artificial selection- - -------correct answer---------Deliberate mating between two individuals who were
selected based on desired traits.
artificial selection- - -------correct answer---------Deliberate mating between two individuals who were
selected based on desired traits.
,asexual reproduction - - -------correct answer---------A type of reproduction where genetically
identical offspring are created from a single parent. This type of reproduction does not utilize
meiosis or gametes. Bacteria
asexual reproduction - - -------correct answer---------A type of reproduction where genetically
identical offspring are created from a single parent. This type of reproduction does not utilize
meiosis or gametes. Bacteria and fungi are examples of organisms that reproduce in this manner.
Atom- - -------correct answer---------The basic unit of matter that cannot be further broken down
without losing its unique properties. One atom consists of a dense nucleus surrounded by a cloud of
electrons.
Atom- - -------correct answer---------The basic unit of matter that cannot be further broken down
without losing its unique properties. One atom consists of a dense nucleus surrounded by a cloud of
electrons.
autosomal chromosome- - -------correct answer---------A chromosome not involved in sex
determination.
autosomal chromosome- - -------correct answer---------A chromosome not involved in sex
determination.
Autosomal- - -------correct answer---------Describes a trait associated with alleles located on
autosomes (non sex chromosomes).
Autosomal- - -------correct answer---------Describes a trait associated with alleles located on
autosomes (non sex chromosomes).
biogeochemical cycle- - -------correct answer---------The processes that transfer chemical elements
between biotic and abiotic components in an ecosystem. There are several main cycles: the water
cycle, the carbon cycle, the nitrogen cycle, and the phosphorus cycle.
biogeochemical cycle- - -------correct answer---------The processes that transfer chemical elements
between biotic and abiotic components in an ecosystem. There are several main cycles: the water
cycle, the carbon cycle, the nitrogen cycle, and the phosphorus cycle.
, Biome- - -------correct answer---------A large naturally occurring community of plants and animals
occupying a major habitat. Examples include tropical forest and arctic tundra.
Biome- - -------correct answer---------A large naturally occurring community of plants and animals
occupying a major habitat. Examples include tropical forest and arctic tundra.
Biomes- - -------correct answer---------A pattern of distribution of ecosystems across the globe, where
similar environmental conditions lead to similar animal and plant adaptations. Examples of biomes
include tropical rainforests, deserts, and tundra.
Biomes- - -------correct answer---------A pattern of distribution of ecosystems across the globe, where
similar environmental conditions lead to similar animal and plant adaptations. Examples of biomes
include tropical rainforests, deserts, and tundra.
biosphere- - -------correct answer---------All areas on, within, and around the planet Earth that are
capable of supporting life.
biosphere- - -------correct answer---------All areas on, within, and around the planet Earth that are
capable of supporting life.
Calvin cycle (Calvin-Ben - -------correct answer---------son cycle or light-independent reaction)- The set
of chemical reactions that take place in chloroplasts during photosynthesis. The cycle is light-
independent because it takes place after the energy has been captured from sunlight. Also called
Calvin-Benson Cycle, Benson-Calvin Cycle.
Calvin cycle (Calvin-Benson cycle or light-independent reaction)- - -------correct answer---------The set
of chemical reactions that take place in chloroplasts during photosynthesis. The cycle is light-
independent because it takes place after the energy has been captured from sunlight. Also called
Calvin-Benson Cycle, Benson-Calvin Cycle.
Carbohydrates- - -------correct answer---------The extracellular surface of the cell membrane is
decorated with carbohydrate groups attached to lipids and proteins. These short carbohydrates play
a role in giving a cell its identity (i.e., distinguishing self from non-self) and are the distinguishing
factor in human blood types.
Carbohydrates- - -------correct answer---------The extracellular surface of the cell membrane is
decorated with carbohydrate groups attached to lipids and proteins. These short carbohydrates play
