WGU- INTRO TO BIOLOGY C190
UPDATED ACTUAL Exam Questions and
CORRECT Answers
A SUBATOMIC PARTICLE HAS A NEGATIVE CHARGE AND IS FOUND IN A SHELL
OF THE ATOM. WHAT IS THE PARTICLE? - CORRECT ANSWER - AN
ELECTRON
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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER -
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? - CORRECT ANSWER - 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? - CORRECT ANSWER -
PARASITISM
WHAT IS THE CHARGE OF A PROTON? - CORRECT ANSWER - +1
A MOLECULAR BONDD RESULTS FROM AN ELECTRON BEING TRANSFERRED
FROM ONE ATOM TO ANOTHER. WHICH TYPE OF BOND HOLDS THESE ATOMS
TOGETHER? - CORRECT ANSWER - IONIC
UPDATED ACTUAL Exam Questions and
CORRECT Answers
A SUBATOMIC PARTICLE HAS A NEGATIVE CHARGE AND IS FOUND IN A SHELL
OF THE ATOM. WHAT IS THE PARTICLE? - CORRECT ANSWER - AN
ELECTRON
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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER -
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? - CORRECT ANSWER - 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? - CORRECT ANSWER -
PARASITISM
WHAT IS THE CHARGE OF A PROTON? - CORRECT ANSWER - +1
A MOLECULAR BONDD RESULTS FROM AN ELECTRON BEING TRANSFERRED
FROM ONE ATOM TO ANOTHER. WHICH TYPE OF BOND HOLDS THESE ATOMS
TOGETHER? - CORRECT ANSWER - IONIC
