WGU- INTRO TO BIOLOGY C190 exam with correct answers

WGU- INTRO TO BIOLOGY C190 exam || || || || || ||




with correct answers || ||




A SUBATOMIC PARTICLE HAS A NEGATIVE CHARGE AND IS FOUND
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IN A SHELL OF THE ATOM. WHAT IS THE PARTICLE? - CORRECT
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ANSWERS ✔✔AN ELECTRON || ||




MALE PEACOCKS COMPETE WITH ONE ANOTHER TO MATE FEMALE
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PEACOCKS. MALES WITH MORE COLORFUL TAIL FEATHERS ATTRACT || || || || || || ||



FEMALE MATES AT A HIGHER RATE THAN THOSE W/O. THEREFORE
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MALE PEACOCKS HAVE COLORFUL TAIL FEATHERS, WHEREAS
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FEMALE PEACOCKS DO NOT. WHAT IS THIS AN EXAMPLE OF? -
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CORRECT ANSWERS ✔✔SEXUAL SELECTION || || ||




A GARDENER MAINTAINS A SPECIES OF ROSE THAT PRODUCD
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EITHER YELLO FLOWERS ( THE DOMINANT PHENOTYPE) OR WHITE
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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
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EVOLUTIONARY MECHANISM IS INVOLVED IN THE CHANGE IN THE || || || || || || || || ||



GENE POOL OF THIS SPECIES? - CORRECT ANSWERS ✔✔MUTATION
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SOME CELLS NEED TO MAINTAIN A SET OF CENCENTRATIONS OF
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Na+ AND K+ IONS. THESE CELLS ARE ABLE TO DO THIS WITH THE
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HELP OF THE Na/K PUMP, WHICH TRANSPORTS THESE IONS FROM
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AREAS OF LOW CONCENTRATION TO AREAS OF HIGH
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,CONCETRATION ( AGAINST THEIR CONCENTRATION GRADIENT). Na+ || || || || || ||



IS PUMPED OUT AND K+ IS PUMPED IN. WHICH TYPE OF MEMBRANE
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TRANSPORT IS INVOLVED IN THIS ACTION? - CORRECT ANSWERS
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✔✔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
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MOLECULE MUST BE PRESENT IN CHROMOSOMES? - CORRECT || || || || || || || ||



ANSWERS ✔✔DNA ||




A CELL HAS DIVIDED ITS CHROMOSOMES INTO WO NEW NUCLEI.
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THE CYTOSKELETON OF THE CELL IS CURRENTLY PINCHING THE
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CELL IN THE MIDDEL TO FROM TWO NEW CELLS. IN WHICH STAGE
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OF THE CELL CYCLE IS THIS CELL? - CORRECT ANSWERS
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✔✔CYTOKENESIS



THERE ARE FOUR SPECIES OF WOODPECKERS THAT INHABIT THE
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PINE FORESTS IN THE SOUTHEASTERN AREA OF THE U.S.
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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|| || || || || || || ||



ANSWERS ✔✔COMMUNITY ||




TWO SPECIES OF WOODPECKER INHABIT THE SAME LOBLOLLY PINE
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WOODLAND THROUGHOUT THE SOUTHEASTERN U.S. EACH SPECIES || || || || || || ||



REQUIRES RECENTLY DECEASED (BUT STILL STANDING) PINE TREES || || || || || || || ||



FOR REPRODUCTION . THE WOODPECKERS EXCAVATE THEIR NEST
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, CAVITIES IN THE DEAD PINE TREES. IN MOST HEALTHY FORESTS
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THERE ARE GENERALLY NOT ENOUGH DEAD PINE TRESS TO
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PROVIDE NESTS FOR ALL THE WOODPECKERS THAT WANT TO BUILD
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THEM. WHAT IS THE RELATIONSHIP BETWEEN THESE TWO SPECIES
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OF WOODPECKER AN EXAMPLE OF? - CORRECT ANSWERS
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✔✔COMPETITION



WHILE ABROAD, A TRAVELER DRINKS UNCLEAN WATER
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CONTAINING TAPEWORM CYSTS. THE TAPEWORM ATTACHES TO THE || || || || || || || ||



INTESTICAL WALLS OF THE TRAVELER, ABSORBING NUTRIENTS || || || || || || ||



FROM THE PARTIALLY DIGESTED FOOD. OVER THE NEXT FEW
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MONTHS, THE TRAVELER EXPERIENCES ONGOING NAUSEA, LOSS OF
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APPETITE, AND WEIGHT LOSS DUE TO THE PRESENCE OF THE
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TAPEWORM IN HIS INTESTINES. WHAT IS THE INTERACTION || || || || || || || ||



BETWEEN THE TAPEWORM AND THE TRAVELER AND EXMPLE OF? -
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CORRECT ANSWERS ✔✔PARASITISM || ||




WHAT IS THE CHARGE OF A PROTON? - CORRECT ANSWERS ✔✔+1
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A MOLECULAR BONDD RESULTS FROM AN ELECTRON BEING
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TRANSFERRED FROM ONE ATOM TO ANOTHER. WHICH TYPE OF || || || || || || || || ||



BOND HOLDS THESE ATOMS TOGETHER? - CORRECT ANSWERS
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✔✔IONIC



WHICH SITUATION DESCRIBES COVALENT BONDING? - CORRECT
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ANSWERS ✔✔AN ATOM SHARES AN ELECTRON WITH ANOTHER
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ATOM.