WGU- INTRO TO BIOLOGY C190 EXAM
QUESTIONS AND ANSWERS
A SUBATOMIC PARTICLE HAS A NEGATIVE CHARGE AND IS FOUND IN A SHELL OF THE ATOM.
WHAT IS THE PARTICLE? - ✔✔ - 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? - ✔✔ - 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 ACTIVITY WOULD HAVE A NEGATIVE
IMPACT ON BIODIVERSITY IN A PRARIE ECOSYSTEM? - ✔✔ - COLLECTING THE RICH TOPSOIL TO
SELL IN SURROUNDING CITIES
IN THE HARSH ARTIC TUNDRA, THE SURVIVIAL OF ONE SPECIES IS OFTEN DEPENDENT ON THE
ACTIONS OF ANOTHER. FOR EXAMPLE, THE ARTIC BUMBLEBEE POLLINATES THE ARTIC POPPY
QUESTIONS AND ANSWERS
A SUBATOMIC PARTICLE HAS A NEGATIVE CHARGE AND IS FOUND IN A SHELL OF THE ATOM.
WHAT IS THE PARTICLE? - ✔✔ - 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? - ✔✔ - 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 ACTIVITY WOULD HAVE A NEGATIVE
IMPACT ON BIODIVERSITY IN A PRARIE ECOSYSTEM? - ✔✔ - COLLECTING THE RICH TOPSOIL TO
SELL IN SURROUNDING CITIES
IN THE HARSH ARTIC TUNDRA, THE SURVIVIAL OF ONE SPECIES IS OFTEN DEPENDENT ON THE
ACTIONS OF ANOTHER. FOR EXAMPLE, THE ARTIC BUMBLEBEE POLLINATES THE ARTIC POPPY
