WGU- INTRO TO BIOLOGY C190 EXAM QUESTIONS AND
ANSWERS | VERIFIED ANSWERS | EXAM ALREADY GRADED A+ |
LATEST EXAM
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
WHICH SITUATION DESCRIBES COVALENT BONDING? - CORRECT
ANSWER -AN ATOM SHARES AN ELECTRON WITH ANOTHER ATOM.
WHICH ITEM WOULD BE CLASSIFIED AS BIOTIC? - CORRECT
ANSWER -FUNGUS
WHICH ITEM IS AN ATOM? - CORRECT ANSWER -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? - CORRECT ANSWER -FASTER THAN
AVERAGE SWIM SPEED
WHICH TWO ACTIVITIES ASSIST IN THE MOVEMENT OF WATER
THROUGH ITS CYCLE AND TAKE PLACE IN LIVING THINGS? -
CORRECT ANSWER -PHOTOSYNTHESIS AND AEROBIC
RESPIRATION
ANSWERS | VERIFIED ANSWERS | EXAM ALREADY GRADED A+ |
LATEST EXAM
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
WHICH SITUATION DESCRIBES COVALENT BONDING? - CORRECT
ANSWER -AN ATOM SHARES AN ELECTRON WITH ANOTHER ATOM.
WHICH ITEM WOULD BE CLASSIFIED AS BIOTIC? - CORRECT
ANSWER -FUNGUS
WHICH ITEM IS AN ATOM? - CORRECT ANSWER -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? - CORRECT ANSWER -FASTER THAN
AVERAGE SWIM SPEED
WHICH TWO ACTIVITIES ASSIST IN THE MOVEMENT OF WATER
THROUGH ITS CYCLE AND TAKE PLACE IN LIVING THINGS? -
CORRECT ANSWER -PHOTOSYNTHESIS AND AEROBIC
RESPIRATION
