WGUC190- INTRO TO BIOLOGY Exam Questions and Answers
with Verified Solutions | Latest 2026 Update
Q: A SUBATOMIC PARTICLE HAS A NEGATIVE CHARGE AND IS
FOUND IN A SHELL OF THE ATOM. WHAT IS THE PARTICLE?
Answer:
AN ELECTRON
Q: 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?
Answer:
SEXUAL SELECTION
Q: 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?
Answer:
MUTATION
Q: 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?
,Answer:
ACTIVE TRANSPORT
Q: 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?
Answer:
DNA
Q: 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?
Answer:
CYTOKENESIS
Q: 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?
Answer:
COMMUNITY
Q: 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?
, Answer:
COMPETITION
Q: 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?
Answer:
PARASITISM
Q: WHAT IS THE CHARGE OF A PROTON?
Answer:
+1
Q: A MOLECULAR BONDD RESULTS FROM AN ELECTRON BEING
TRANSFERRED FROM ONE ATOM TO ANOTHER. WHICH TYPE OF
BOND HOLDS THESE ATOMS TOGETHER?
Answer:
IONIC
Q: WHICH SITUATION DESCRIBES COVALENT BONDING?
Answer:
AN ATOM SHARES AN ELECTRON WITH ANOTHER ATOM.
Q: WHICH ITEM WOULD BE CLASSIFIED AS BIOTIC?
Answer:
FUNGUS
Q: WHICH ITEM IS AN ATOM?
Answer:
NITROGEN
with Verified Solutions | Latest 2026 Update
Q: A SUBATOMIC PARTICLE HAS A NEGATIVE CHARGE AND IS
FOUND IN A SHELL OF THE ATOM. WHAT IS THE PARTICLE?
Answer:
AN ELECTRON
Q: 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?
Answer:
SEXUAL SELECTION
Q: 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?
Answer:
MUTATION
Q: 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?
,Answer:
ACTIVE TRANSPORT
Q: 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?
Answer:
DNA
Q: 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?
Answer:
CYTOKENESIS
Q: 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?
Answer:
COMMUNITY
Q: 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?
, Answer:
COMPETITION
Q: 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?
Answer:
PARASITISM
Q: WHAT IS THE CHARGE OF A PROTON?
Answer:
+1
Q: A MOLECULAR BONDD RESULTS FROM AN ELECTRON BEING
TRANSFERRED FROM ONE ATOM TO ANOTHER. WHICH TYPE OF
BOND HOLDS THESE ATOMS TOGETHER?
Answer:
IONIC
Q: WHICH SITUATION DESCRIBES COVALENT BONDING?
Answer:
AN ATOM SHARES AN ELECTRON WITH ANOTHER ATOM.
Q: WHICH ITEM WOULD BE CLASSIFIED AS BIOTIC?
Answer:
FUNGUS
Q: WHICH ITEM IS AN ATOM?
Answer:
NITROGEN
