WGU C190 Exam Questions and Answers
(2026) | Fully Solved with Verified Answers
| A+ Verified
• MALE PEACOCKS COMPETE WITH ONE ANOTHER TO MATE FEMALE
PEACOCKS. MALES WITH MORE COLORFUL TAIL FEATHERS ATTRACT FEMALE
MATES AT A HIGHER RATE THAN THOSE W/O. THEREFORE MALE PEACOCKS
HAVE COLORFUL TAIL FEATHERS, WHEREAS FEMALE PEACOCKS DO NOT.
WHAT IS THIS AN EXAMPLE OF? -✓✓SEXUAL SELECTION
• A GARDENER MAINTAINS A SPECIES OF ROSE THAT PRODUCD EITHER YELLO
FLOWERS ( THE DOMINANT PHENOTYPE) OR WHITE FLOWERS ( THE
RECESSIVE PHENOTYPE). ONE DAY, THE GARDENER OBSERVES THAT A
CROSS BETWEEN TWO YELLOW ROSE BUSHES HAS LED TO A SINGLE ROSE
BUSH WITH ORANGE FLOWERS. WHAT EVOLUTIONARY MECHANISM IS
INVOLVED IN THE CHANGE IN THE GENE POOL OF THIS SPECIES? -
✓✓MUTATION
• SOME CELLS NEED TO MAINTAIN A SET OF CENCENTRATIONS OF Na+ AND K+
IONS. THESE CELLS ARE ABLE TO DO THIS WITH THE HELP OF THE Na/K PUMP,
WHICH TRANSPORTS THESE IONS FROM AREAS OF LOW CONCENTRATION TO
AREAS OF HIGH CONCETRATION ( AGAINST THEIR CONCENTRATION
GRADIENT). Na+ IS PUMPED OUT AND K+ IS PUMPED IN. WHICH TYPE OF
MEMBRANE TRANSPORT IS INVOLVED IN THIS ACTION? -✓✓ACTIVE
TRANSPORT
• CHROMOSOMES ARE STRUCTURES THAT CONTAIN HEREDITARY MATEIRAL
THAT WILL BE PASSED FROM ONE GENERATION TO THE NEXT. ACCORDING TO
THIS INFORMATION, WHICH ORGANIC MOLECULE MUST BE PRESENT IN
CHROMOSOMES? -✓✓DNA
• A CELL HAS DIVIDED ITS CHROMOSOMES INTO WO NEW NUCLEI. THE
CYTOSKELETON OF THE CELL IS CURRENTLY PINCHING THE CELL IN THE
MIDDEL TO FROM TWO NEW CELLS. IN WHICH STAGE OF THE CELL CYCLE IS
THIS CELL? -✓✓CYTOKENESIS
• THERE ARE FOUR SPECIES OF WOODPECKERS THAT INHABIT THE PINE
FORESTS IN THE SOUTHEASTERN AREA OF THE U.S. INDIVIDUALS OF THIS
SPECIES UTILIZE MANY OF THE SAME RESOURCES FOR FOOD AND NESTING.
WHICH LEVEL OF ECOLOGICAL ORGANIZATION DESCRIBES THE
RELATIONSHIP AMONG THESE FOUR SPECIES OF WOODEPECKER? -
✓✓COMMUNITY
, • TWO SPECIES OF WOODPECKER INHABIT THE SAME LOBLOLLY PINE
WOODLAND THROUGHOUT THE SOUTHEASTERN U.S. EACH SPECIES
REQUIRES RECENTLY DECEASED (BUT STILL STANDING) PINE TREES FOR
REPRODUCTION . THE WOODPECKERS EXCAVATE THEIR NEST CAVITIES IN
THE DEAD PINE TREES. IN MOST HEALTHY FORESTS THERE ARE GENERALLY
NOT ENOUGH DEAD PINE TRESS TO PROVIDE NESTS FOR ALL THE
WOODPECKERS THAT WANT TO BUILD THEM. WHAT IS THE RELATIONSHIP
BETWEEN THESE TWO SPECIES OF WOODPECKER AN EXAMPLE OF? -
✓✓COMPETITION
• WHILE ABROAD, A TRAVELER DRINKS UNCLEAN WATER CONTAINING
TAPEWORM CYSTS. THE TAPEWORM ATTACHES TO THE INTESTICAL WALLS
OF THE TRAVELER, ABSORBING NUTRIENTS FROM THE PARTIALLY DIGESTED
FOOD. OVER THE NEXT FEW MONTHS, THE TRAVELER EXPERIENCES
ONGOING NAUSEA, LOSS OF APPETITE, AND WEIGHT LOSS DUE TO THE
PRESENCE OF THE TAPEWORM IN HIS INTESTINES. WHAT IS THE
INTERACTION BETWEEN THE TAPEWORM AND THE TRAVELER AND EXMPLE
OF? -✓✓PARASITISM
• WHAT IS THE CHARGE OF A PROTON? -✓✓+1
• A MOLECULAR BONDD RESULTS FROM AN ELECTRON BEING TRANSFERRED
FROM ONE ATOM TO ANOTHER. WHICH TYPE OF BOND HOLDS THESE ATOMS
TOGETHER? -✓✓IONIC
• WHICH SITUATION DESCRIBES COVALENT BONDING? -✓✓AN ATOM SHARES
AN ELECTRON WITH ANOTHER ATOM.
• WHICH ITEM WOULD BE CLASSIFIED AS BIOTIC? -✓✓FUNGUS
• WHICH ITEM IS AN ATOM? -✓✓NITROGEN
• LARGEMOUTH BASS HAVE INTRODUCED INTO PONDA THAT PREVIOULSY DID
NOT CONTAIN ANY LARGE, PREDATORY FISH. WHICH ADAPTATION WOULD
HELP THE EXISTING POPULATION OF SMALL, PREY SPECIES OF FISH AVOID
PREDATION FROM THE LARGE MOUTH BASS? -✓✓FASTER THAN AVERAGE
SWIM SPEED
• WHICH TWO ACTIVITIES ASSIST IN THE MOVEMENT OF WATER THROUGH ITS
CYCLE AND TAKE PLACE IN LIVING THINGS? -✓✓PHOTOSYNTHESIS AND
AEROBIC RESPIRATION
• PRARIE ECOSYSTEMS ARE COMMON WITHIN CONTINENTAL INTERIORS IN
THE NORTHERN HEMISPHERE. THESE ECOSYSTEMS HAVE A THICH NUTRIENT
RICH TOP SOIL AND ARE DOMINATED BY GRASSLANDS AND SHRUBS. WHICH
(2026) | Fully Solved with Verified Answers
| A+ Verified
• MALE PEACOCKS COMPETE WITH ONE ANOTHER TO MATE FEMALE
PEACOCKS. MALES WITH MORE COLORFUL TAIL FEATHERS ATTRACT FEMALE
MATES AT A HIGHER RATE THAN THOSE W/O. THEREFORE MALE PEACOCKS
HAVE COLORFUL TAIL FEATHERS, WHEREAS FEMALE PEACOCKS DO NOT.
WHAT IS THIS AN EXAMPLE OF? -✓✓SEXUAL SELECTION
• A GARDENER MAINTAINS A SPECIES OF ROSE THAT PRODUCD EITHER YELLO
FLOWERS ( THE DOMINANT PHENOTYPE) OR WHITE FLOWERS ( THE
RECESSIVE PHENOTYPE). ONE DAY, THE GARDENER OBSERVES THAT A
CROSS BETWEEN TWO YELLOW ROSE BUSHES HAS LED TO A SINGLE ROSE
BUSH WITH ORANGE FLOWERS. WHAT EVOLUTIONARY MECHANISM IS
INVOLVED IN THE CHANGE IN THE GENE POOL OF THIS SPECIES? -
✓✓MUTATION
• SOME CELLS NEED TO MAINTAIN A SET OF CENCENTRATIONS OF Na+ AND K+
IONS. THESE CELLS ARE ABLE TO DO THIS WITH THE HELP OF THE Na/K PUMP,
WHICH TRANSPORTS THESE IONS FROM AREAS OF LOW CONCENTRATION TO
AREAS OF HIGH CONCETRATION ( AGAINST THEIR CONCENTRATION
GRADIENT). Na+ IS PUMPED OUT AND K+ IS PUMPED IN. WHICH TYPE OF
MEMBRANE TRANSPORT IS INVOLVED IN THIS ACTION? -✓✓ACTIVE
TRANSPORT
• CHROMOSOMES ARE STRUCTURES THAT CONTAIN HEREDITARY MATEIRAL
THAT WILL BE PASSED FROM ONE GENERATION TO THE NEXT. ACCORDING TO
THIS INFORMATION, WHICH ORGANIC MOLECULE MUST BE PRESENT IN
CHROMOSOMES? -✓✓DNA
• A CELL HAS DIVIDED ITS CHROMOSOMES INTO WO NEW NUCLEI. THE
CYTOSKELETON OF THE CELL IS CURRENTLY PINCHING THE CELL IN THE
MIDDEL TO FROM TWO NEW CELLS. IN WHICH STAGE OF THE CELL CYCLE IS
THIS CELL? -✓✓CYTOKENESIS
• THERE ARE FOUR SPECIES OF WOODPECKERS THAT INHABIT THE PINE
FORESTS IN THE SOUTHEASTERN AREA OF THE U.S. INDIVIDUALS OF THIS
SPECIES UTILIZE MANY OF THE SAME RESOURCES FOR FOOD AND NESTING.
WHICH LEVEL OF ECOLOGICAL ORGANIZATION DESCRIBES THE
RELATIONSHIP AMONG THESE FOUR SPECIES OF WOODEPECKER? -
✓✓COMMUNITY
, • TWO SPECIES OF WOODPECKER INHABIT THE SAME LOBLOLLY PINE
WOODLAND THROUGHOUT THE SOUTHEASTERN U.S. EACH SPECIES
REQUIRES RECENTLY DECEASED (BUT STILL STANDING) PINE TREES FOR
REPRODUCTION . THE WOODPECKERS EXCAVATE THEIR NEST CAVITIES IN
THE DEAD PINE TREES. IN MOST HEALTHY FORESTS THERE ARE GENERALLY
NOT ENOUGH DEAD PINE TRESS TO PROVIDE NESTS FOR ALL THE
WOODPECKERS THAT WANT TO BUILD THEM. WHAT IS THE RELATIONSHIP
BETWEEN THESE TWO SPECIES OF WOODPECKER AN EXAMPLE OF? -
✓✓COMPETITION
• WHILE ABROAD, A TRAVELER DRINKS UNCLEAN WATER CONTAINING
TAPEWORM CYSTS. THE TAPEWORM ATTACHES TO THE INTESTICAL WALLS
OF THE TRAVELER, ABSORBING NUTRIENTS FROM THE PARTIALLY DIGESTED
FOOD. OVER THE NEXT FEW MONTHS, THE TRAVELER EXPERIENCES
ONGOING NAUSEA, LOSS OF APPETITE, AND WEIGHT LOSS DUE TO THE
PRESENCE OF THE TAPEWORM IN HIS INTESTINES. WHAT IS THE
INTERACTION BETWEEN THE TAPEWORM AND THE TRAVELER AND EXMPLE
OF? -✓✓PARASITISM
• WHAT IS THE CHARGE OF A PROTON? -✓✓+1
• A MOLECULAR BONDD RESULTS FROM AN ELECTRON BEING TRANSFERRED
FROM ONE ATOM TO ANOTHER. WHICH TYPE OF BOND HOLDS THESE ATOMS
TOGETHER? -✓✓IONIC
• WHICH SITUATION DESCRIBES COVALENT BONDING? -✓✓AN ATOM SHARES
AN ELECTRON WITH ANOTHER ATOM.
• WHICH ITEM WOULD BE CLASSIFIED AS BIOTIC? -✓✓FUNGUS
• WHICH ITEM IS AN ATOM? -✓✓NITROGEN
• LARGEMOUTH BASS HAVE INTRODUCED INTO PONDA THAT PREVIOULSY DID
NOT CONTAIN ANY LARGE, PREDATORY FISH. WHICH ADAPTATION WOULD
HELP THE EXISTING POPULATION OF SMALL, PREY SPECIES OF FISH AVOID
PREDATION FROM THE LARGE MOUTH BASS? -✓✓FASTER THAN AVERAGE
SWIM SPEED
• WHICH TWO ACTIVITIES ASSIST IN THE MOVEMENT OF WATER THROUGH ITS
CYCLE AND TAKE PLACE IN LIVING THINGS? -✓✓PHOTOSYNTHESIS AND
AEROBIC RESPIRATION
• PRARIE ECOSYSTEMS ARE COMMON WITHIN CONTINENTAL INTERIORS IN
THE NORTHERN HEMISPHERE. THESE ECOSYSTEMS HAVE A THICH NUTRIENT
RICH TOP SOIL AND ARE DOMINATED BY GRASSLANDS AND SHRUBS. WHICH
