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BIOLOGY COMPETENCY TEST
Review Questions
IN RESEARCH, A SCIENTIST
MUST ALWAYS CONSIDER…
A.
plants.
B.
evidence.
C. photographs.
D. theories.
A BIAS IS MOSTLY DUE TO…
A.
the study of life.
B.
controlled experiments.
C. experimental data.
D. a personal point of view.
TOPICS STUDIED IN BIOLOGY
INCLUDE ALL OF THE FOLLOWING
EXCEPT…
A.
the biosphere.
B.
rocks and minerals.
C. changes in groups of organisms.
D. reproduction and growth.
ALL OF THE FOLLOWING ARE
CHARACTERISTICS OF ALL LIVING
THINGS EXCEPT THE ABILITY TO…
A.
grow and develop.
B.
maintain a stable internal environment.
C. change over time.
D. reproduce asexually.
ALL OF THE FOLLOWING ARE
CORRECT BIG IDEAS IN BIOLOGY
EXCEPT, LIVING THINGS ARE…
A.
unable to adapt to their surroundings.
B.
based on an universal genetic code.
C. made up of cells.
D. diverse.
A LOGICAL EXPLANATION OF NATURAL
PHENOMENA THAT IS SUPPORTED BY
SCIENTIFIC OBSERVATIONS AND
EXPERIMENTS IS CALLED A (AN)…
A.
Hypothesis
B.
Inference
C. Factor
D. Theory
THE SCIENTIFIC METHOD IS…
A.
A way of posing a research question only.
B.
Used to organize data that is already known.
C. An organized approach to problem solving.
D. Used by all scientists in an identical way.
WHICH STATEMENT BEST
DESCRIBES A SCIENTIFIC
THEORY…
A.
It is a collection of data designed to provide support for a
prediction.
B.
It is an educated guess that can be tested by
experimentation.
C. It is a scientific fact that no longer requires any evidence to
support it.
D. It is a general statement that is supported by many
scientific observations.
A BIOLOGIST REPORTED SUCCESS IN BREEDING A
TIGER WITH A LION, PRODUCING HEALTHY FERTILE
OFFSPRING.
OTHER BIOLOGISTS WILL ACCEPT THIS REPORT AS
FACT ONLY IF…
A.
Research shows that other animals can be crossbred
B.
The offspring are given a new scientific name
C. The biologist included a control in the experiment
D. They can repeat the experiment and get the same result
A SCIENTIST WANTS TO STUDY THE
INTERNAL STRUCTURE OF A CHLOROPLAST
(PART OF A PLANT CELL) IN GREAT DETAIL.
THE BEST INSTRUMENT FOR THIS DETAILED
EXAMINATION WOULD BE A (AN)…
A.
Compound microscope
B.
Simple light microscope
C. Electron microscope
D. Ultracetrifuge
WHICH STRUCTURE IS BEST SEEN
BY USING A COMPOUND LIGHT
MICROSCOPE?
A.
A cell’s nucleus
B.
A paramecium
C. A DNA sequence
D. A mitochondrion
THE POSITIVELY CHARGED
PARTICLE IN AN ATOM
IS CALLED A…
A.
neutron.
B.
ion.
C. proton.
D. electron.
PROTEINS ARE POLYMERS
FORMED FROM…
A.
lipids.
B.
amino acids.
C. carbohydrates.
D. nucleic acids.
THE TWO ELEMENTS FOUND IN
EVERY ORGANIC COMPOUND ARE…
A.
Nitrogen and oxygen
B.
Oxygen and hydrogen
C. Carbon and hydrogen
D. Carbon and oxygen
WHICH FAMILY OF ORGANIC
COMPOUNDS ARE USED MAINLY TO
STORE ENERGY FOR THE BODY?
A.
Lipids
B.
Carbohydrates
C. Proteins
D. Nucleic acids
THE SUBUNITS OF DNA ARE
CALLED…
A.
Amino acids
B.
Nucleotides
C. Polysaccharides
D. Cell units
EVERY SINGLE CELLED ORGANISM
IS ABLE TO SURVIVE BECAUSE IT
CARRIES OUT…
A.
Metabolic activities
B.
Heterotrophic nutrition
C. Autotrophic nutrition
D. Sexual reproduction
WHICH SEQUENCE REPRESENTS THE
CORRECT ORDER OF LEVELS OF
ORGANIZATION FOUND IN A COMPLEX
ORGANISM?
A.
Cellsorganellesorgansorgan systemstissues
B.
Organellescellstissuesorgansorgan systems
C. Tissuesorgansorgan systemsorganellescells
D. Organsorgan systemscellstissuesorganelles
THE SCIENTIST WHO GAVE
CELLS THEIR NAME …
A.
Anton van Leeuwenhoek.
B.
Robert Hooke.
C. Matthias Schleiden.
D. Theodor Schwann.
THE FLEXIBLE LIPID BILAYER
THAT SURROUNDS A CELL IS
CALLED…
A.
cytoskeleton.
B.
endoplasmic reticulum.
C. cell wall.
D. cell membrane.
WHICH ORGANELLE PACKAGES
MATERIALS THAT WILL BE
SHIPPED OUT OF THE CELL?
A.
centrioles
B.
mitochondria
C. Golgi apparatus
D. lysosomes
IN THE PROCESS OF ___________,
WATER MOLECULES MOVE
THROUGH CELL MEMBRANES.
A.
osmosis
B.
bulk transport
C. phagocytosis
D. endocytosis
IN A HYPERTONIC SOLUTION, A
CELL WILL …
A.
swell.
B.
burst.
C. shrink.
D. stay the same
SMALL MOLECULES CAN BE MOVED
ACTIVELY ACROSS THE CELL
MEMBRANE BY …
A.
diffusion.
B.
water channel proteins.
C. proteins that act like pumps.
D. facilitated diffusion.
WHICH STRUCTURE IN THE CELL
SHOWN IN THE FIGURE STORES
MATERIALS, SUCH AS WATER, SALTS,
PROTEINS, AND CARBOHYDRATES?
A.
structure A
B.
structure B
C. structure C
D. structure D
WHICH MEANS OF PARTICLE
TRANSPORT IS SHOWN IN THIS
FIGURE?
A.
Diffusion
B.
facilitated diffusion
C. Osmosis
D. active transport
WHICH OF THE FOLLOWING
ORGANISMS ARE PROKARYOTES?
A.
Plants
B.
bacteria
C. animals
D. fungi
A PLANT CELL SHRINKS WHEN PLACED
IN SALT WATER DUE TO THE …
A.
Osmosis of water molecules out of the cell.
B.
Osmosis of water molecules into the cell.
C. Diffusion of salt molecules into the cell.
D. Diffusion of salt molecules out of the cell.
ORGANISMS UNDERGO CONSTANT CHEMICAL
CHANGES AS THEY MAINTAIN AN INTERNAL
BALANCE KNOWN AS …
A.
Interdependence
B.
Synthesis
C. Homeostasis
D. Recombination
INTRACELLULAR FLUID IS
IMPORTANT FOR EXCHANGE OF
MATERIALS BETWEEN
A.
Body cells and arteries
B.
Body cells and veins
C. Veins and capillaries
D. Body cells and capillaries
CHEMICAL REACTIONS WITHIN
A CELL USUALLY TAKE PLACE…
A.
Over extremely long periods of time
B.
In a series of small steps
C. All at once in a single burst
D. Over a period of several days
A WASTE PRODUCT OF
PHOTOSYNTHESIS IS…
A.
oxygen.
B.
water.
C. carbon dioxide.
D. sugar.
WHAT IS THE PRIMARY LIGHTABSORBING PIGMENT IN PLANTS?
A.
Chlorophyll
B.
carotene
C. thylakoid
D. ATP synthase
DEER AND COWS EAT PLANTS.
THESE ANIMALS ARE
CLASSIFIED AS….
A.
autotrophs.
B.
heterotrophs.
C. photosynthesizers.
D. decomposers.
THE REACTANTS OF
PHOTOSYNTHESIS ARE …
A.
sugars and oxygen.
B.
ATP and NADP.
C. oxygen and carbon dioxide.
D. carbon dioxide and water.
WHICH OF THE FOLLOWING
ORGANISMS IS A HETEROTROPH?
A.
mushroom
B.
wheat
C. alga
D. sunflower
THE STROMA IS THE REGION
OUTSIDE THE …
A.
thylakoids.
B.
plant cells.
C. chloroplasts.
D. all of the above
PHOTOSYNTHESIS USES
SUNLIGHT TO CONVERT WATER
AND CARBON DIOXIDE INTO …
A.
oxygen and carbon.
B.
high-energy sugars and proteins.
C. ATP and oxygen.
D. oxygen and high-energy sugars
THE CALVIN CYCLE IS ANOTHER
NAME FOR THE …
A.
light-independent reactions.
B.
photosynthesis reaction.
C. light-dependent reactions.
D. electron transport chain
WHICH IS THE MAIN SOURCE OF
ENERGY FOR EARTH’S LIVING
THINGS?
A.
wind energy only
B.
sunlight only
C. wind energy and sunlight
D. sunlight and chemical energy
THE PHYSICAL, OR NONLIVING,
COMPONENTS OF THE
ECOSYSTEM ARE CALLED …
A.
abiotic factors.
B.
biotic factors.
C. antibiotic factors.
D. temperate factors.
ALL LIFE ON EARTH EXISTS IN A
REGION KNOWN AS…
A.
ecology.
B.
a biome.
C. biomass.
D. the biosphere.
THE TOTAL MASS OF LIVING
TISSUE AT EACH TROPHIC LEVEL
CAN BE SHOWN IN A …
A.
pyramid of numbers.
B.
biogeochemical cycle.
C. pyramid of biomass.
D. limiting nutrient.
NUTRIENTS MOVE THROUGH AN
ECOSYSTEM IN …
A.
biogeochemical cycles.
B.
water cycles.
C. energy pyramids.
D. ecological pyramids.
A GROUP OF POPULATIONS LIVING
TOGETHER IN ONE AREA IS A …
A.
species.
B.
community.
C. ecosystem.
D. biosphere.
ANOTHER WORD FOR A
PRODUCER IS A(N) …
A.
heterotroph.
B.
carnivore.
C. scavenger.
D. autotroph.
THE FIRST TROPHIC LEVEL
CONSISTS OF ORGANISMS THAT…
A.
Use energy to make their own food
B.
Eat first level consumers only
C. Eat producers and consumers
D. Add matter to the ecosystem
WHAT IS ALWAYS TRANSFERRED IN
A FOOD CHAIN?
A.
Toxins
B.
Water
C. Energy
D. Oxygen
WHICH SEQUENCE INITIATES A
CORRECT FLOW OF ENERGY?
A.
Herbivoresuncarnivore
B.
Sunproducerherbivore
C. Producersuncarnivore
D. Carnivoreherbivoresun
IN MOST HABITATS, THE REMOVAL OF
CARNIVORES WILL HAVE THE MOST
IMMEDIATE EFFECT ON A POPULATION OF …
A.
Producers
B.
Herbivores
C. Decomposers
D. Microbes
IN A FOOD WEB ENERGY
ALWAYS MOVES…
A.
In a continuous cycle
among trophic levels
B.
Back and forth between
two trophic levels
C. From a lower to higher
trophic level only
D. From a higher to a lower
trophic level only
WHAT GOES IN BOX 5 OF THE FOOD
WEB IN FIGURE 3–1?
A.
herbivores
B.
scavengers
C. carnivores
D. decomposers
THE ORGANISMS THAT HELP
RECYCLE ELEMENTS BY
BREAKING DOWN ORGANIC
MATTER INCLUDE …
A.
Grass and algae
B.
Bacteria and algae
C. Bacteria and fungi
D. Plants and fungi
UNLIKE A DESERT, A TROPICAL
RAINFOREST TYPICALLY HAS …
A.
Low biodiversity
B.
Great biodiversity
C. A small variety of organisms
D. A small number of organisms
WHAT IS THE LONGEST FOOD CHAIN IN THE
FIGURE BELOW THAT CONTAINS GRASS AS A
PRODUCER? (LIST THE ORGANISMS)
Answer:
WHAT ARE THE PRIMARY PRODUCERS
IN THIS FIGURE? LIST THE ORGANISM(S)
Answer:
WHICH SPECIES WOULD BE MOST AFFECTED IF A
DISEASE KILLED OFF MOST OF THE TREES IN THE
ECOSYSTEM SHOWN IN FIGURE BELOW?
WHAT OTHER SPECIES MIGHT BE AFFECTED? EXPLAIN
YOUR ANSWERS.
Answer:
WOULD THE SNAKE OBTAIN A GREATER
PERCENTAGE OF ENERGY FROM THE GRASS
AFTER EATING A FROG OR A GRASSHOPPER?
EXPLAIN YOUR ANSWER.
Answer:
A DISRUPTION IN HOMEOSTASIS
CAN RESULT IN ALL OF THE
FOLLOWING EXCEPT
A.
Illness
B.
Death
C. Disease
D. Stability
IN A MUDDY POND, LIGHT-COLORED FISH
ARE MORE LIKELY TO BE EATEN THAN DARKCOLORED FISH. WHAT IS DARK COLORING AN
EXAMPLE OF?...
A.
artificial selection
B.
fossil evidence
C. adaptation
D. none of the above
DARWIN REALIZED THAT MEMBERS OF
POPULATIONS COMPETE FOR FOOD,
LIVING SPACE, AND OTHER NECESSITIES.
THIS IS KNOWN AS …
A.
struggle for existence.
B.
variation and adaptations.
C. survival of the fittest.
D. natural selection.
BOTH BATS AND MOSQUITOES
HAVE WINGS. THIS IS AN EXAMPLE
OF A(N) …
A.
analogous structure.
B.
homologous structure.
C. vestigial structure.
D. none of the above.
DARWIN’S THEORY OF EVOLUTION
IS SUPPORTED BY …
A.
DNA evidence.
B.
fossil evidence.
C. embryology.
D. all of the above.
BOTH SNAKES AND SQUIRRELS ARE ANIMALS.
MAMMALIA IS A CLASS OF ANIMALS THAT ARE
COVERED WITH HAIR.
BASED ON THIS INFORMATION, WHICH
CLASSIFICATION GROUP INCLUDES BOTH SNAKES AND
SQUIRRELS? (THINK LEVELS OF CLASSIFICATION)
A.
species
B.
order
C. class
D. kingdom
LINNAEUS IS CONSIDERED THE FATHER OF MODERN
TAXONOMY.
FOR THE MOST PART, WE STILL CLASSIFY ORGANISMS
USING THE LINNAEAN SYSTEM CREATED IN THE
EIGHTEENTH CENTURY.
WHICH OF THE FOLLOWING IS NOT PART OF THE
LINNAEAN SYSTEM?
A.
binomial nomenclature
B.
kingdoms
C. domains
D. species
BOTH CAMELS AND GIRAFFES BELONG TO
THE ORDER ARTIODACTYLA. THIS MEANS
THEY MUST BELONG TO THE SAME…
A.
Class
B.
Kingdom
C. Family
D. both A and B
THE SCIENTIFIC NAME FOR THE RED
MAPLE TREE IS ACER RUBRUM. THIS
NAME INCLUDES ITS …
A.
Class and phylum
B.
Family and species
C. Genus and species
D. Genus and order
THE BRANCH OF BIOLOGY THAT
DEALS WITH CLASSIFICATION OF
LIFE FORMS IS CALLED…
A.
Embryology
B.
Taxonomy
C. Morphology
D. Biochemistry
THE TWO DOMAINS COMPOSED OF ONLY
UNICELLULAR ORGANISMS ARE …
A.
Eubacteria and Archaea.
B.
Archaea and Bacteria.
C. Eukarya and Bacteria.
D. Archaea and Eukarya.
ACCORDING TO THE CLADOGRAM BELOW, WHAT
TWO CHARACTERISTICS DO CRABS AND
BARNACLES SHARE THAT LIMPETS DO NOT?
Answer:
WHICH LEVEL OF TAXONOMIC
CATEGORY SHOWN IN THE FIGURE
CONTAINS THE GREATEST NUMBER OF
DIFFERENT ORGANISMS?
Answer:
DO ALL ORGANISMS SHOWN IN FIGURE
BELONG TO THE ORDER CARNIVORA ALSO
BELONG TO THE PHYLUM CHORDATA?
EXPLAIN.
Answer:
DO ALL ORGANISMS SHOWN IN THE
FIGURE THAT BELONG TO THE CLASS
MAMMALIA ALSO BELONG TO THE
GENUS URSUS? EXPLAIN.
Answer:
HEREDITY IS BEST DESCRIBED AS…
A.
A behavioral difference among offspring.
B.
The struggle for existence among living things.
C. Traits that are passed from one generation to the next.
D. The gradual change in organisms over many years.
A MUTATION USUALLY RESULTS
FROM …
A.
Artificial selection carried out by humans
B.
The fact that only the fittest organisms survive
C. A sudden change in the genetic material of an organism
D. Competition for resources such as food and water
A COUPLE HAD TWO CHILDREN ONE
WITH BLUE EYES AND THE OTHER
WITH BROWN EYES. THIS DIFFERENCE
IS AN EXAMPLE OF …
A.
Natural selection
B.
Artificial selection
C. Genetic variation
D. Acquired characteristics
ANY INHERITED CHARACTERISTIC
THAT INCREASES AN ORGANISM’S
CHANCE OF SURVIVAL IS A(N)
A.
adaptation.
B.
polygenic trait.
C. homologous trait.
D. derived character.
WHICH STATEMENT REPRESENTS THE
MAJOR CONCEPT OF THE BIOLOGICAL
THEORY OF EVOLUTION?
A.
A new species moves into a habitat whenever another
species becomes extinct.
B.
Present-day organisms on Earth developed from earlier,
different organisms.
C. Every period of time in Earth’s history had its own group of
organisms.
D. Every location on Earth’s surface has its own unique group
of organisms.
SELECTIVE BREEDING FOR
PARTICULAR TRAITS CAN BE USED TO
A.
Develop cultivated plants only
B.
Develop domesticated animals only
C. Develop cultivated plants and domesticated animals
D. Breed rare, wild animal species only
ACCORDING TO THEORY OF EVOLUTION BY
NATURAL SELECTION SOME ORGANISMS ARE
MORE LIKELY THAN OTHERS TO SURVIVE
AND REPRODUCES BECAUSE THEY …
A.
Can pass on to offspring new characteristics they acquired
during their lifetimes
B.
Do not pass on to offspring any new characteristics they
have acquired
C. Are better adapted to conditions in the environment than
other organisms are
D. Tend to produce fewer offspring than others do within the
same environment
MOST FOSSILS ARE FOUND IN….
A.
rusty water.
B.
volcanic rock.
C. sedimentary rock.
D. the sap of ancient trees.
FOSSILS USUALLY PROVIDE
PALEONTOLOGISTS WITH
INFORMATION ABOUT EACH OF THE
FOLLOWING EXCEPT…
A.
an organism’s structure
B.
an organism’s way of life
C. an organism’s environment
D. an organism’s DNA
ALL OF THE FOLLOWING CAN BE USED
AS EVIDENCE TO SUPPORT DARWIN’S
THEORY OF EVOLUTION EXCEPT THE…
A.
Similarity of chemicals in all living things
B.
Distribution of species on the planet today
C. Shapes and structures of living organisms
D. Distribution of mountain ranges on Earth’s surface
WHICH STATEMENT IS BEST
SUPPORTED BY EVIDENCE FROM
THE FOSSIL RECORD?
A.
Most of the organisms that lived on Earth in the past are
now extinct.
B.
The struggle for existence between organisms results in
genetic changes.
C. Species occupying the same habitat have identical
environmental needs.
D. Structures such as leg bones and wing bones come from
the same embryonic tissue.
THE EVOLUTIONARY TREE IN THE FIGURE SHOWS
RELATIONSHIPS AMONG SEVERAL MAMMAL SPECIES.
WHICH GROUP OF MODERN MAMMALS IS THE MOST
CLOSELY RELATED TO ELEPHANTS (PROBOSCIDEANS)?
A.
Answer:
ACCORDING TO FIGURE 1 BELOW,
WHICH BEAK SIZE DOES NOT HELP
THE BIRDS SURVIVE?
A.
Answer:
ACCORDING TO FIGURE 1, HOW
ARE THE TWO VARIABLES, BIRD
SURVIVAL AND BEAK SIZE,
RELATED?
A.
Answer:
WATSON AND CRICK CONTRIBUTED
TO THE STUDY OF DNA BY …
A.
Experimenting with pea plants
B.
Recognizing that traits are inherited
C. Discovering the double helix structure of DNA
D. Mapping the entire human genome
IF ONE STRAND OF DNA
MOLECULE IS ‘GATCCAT’ THE
SEQUENCE OF THE OPPOSITE
STRAND IS…
A.
GATCCAT
B.
CTAGGTA
C. ATGGATG
D. TACCTAG
DNA IS COPIED IN A PROCESS
CALLED…
A.
replication.
B.
translation.
C. transcription.
D. transformation.
THE CROSS BETWEEN A RED FLOWER AND A
WHITE FLOWER PRODUCES ALL PINK FLOWERS.
THIS TYPE OF INHERITANCE IS KNOWN AS…
A.
incomplete dominance.
B.
polygenic inheritance.
C. codominance.
D. simple dominance.
THE RESULT OF
TRANSCRIPTION IS…
A.
a copy of the DNA molecule.
B.
a strand of RNA.
C. a protein.
D. a chromosome.
A MUTATION IS CONSIDERED
POSITIVE WHEN IT …
A.
Makes it hard for the organism to survive
B.
Has absolutely no effect on the organism
C. Changes the organism in an undetectable way
D. Provides a sudden advantage that aids survival
GENES CAN BE BEST
DESCRIBES AS …
A.
Direction for making DNA
B.
Directions for making proteins
C. The subunits of proteins
D. Directions for making RNA
WHICH PATH CORRECTLY
DESCRIBES THE FLOW OF
INFORMATION IN CELLS?
A.
DNA  RNAprotein
B.
ProteinRNADNA
C. Protein  DNA RNA
D. RNADNAprotein
WHAT DOES A CODON
REPRESENT ?
A.
A specific amino acid
B.
A specific base
C. An RNA molecule
D. An enzyme
HOW MANY NUCLEOTIDE BASES
MAKE UP A CODON?
A.
One
B.
Two
C. Three
D. Four
THE NUMBER OF CHROMOSOMES
IN EACH BODY CELL …
A.
Is specific for each type of organism
B.
Is the same for every type of organism
C. Decreases from parent to offspring
D. Increases from the parent to offspring
BEFORE CELL DIVISION THE GENETIC
MATERIAL MUST UNDERGO
A PROCESS CALLED …
A.
Reduction
B.
Restoration
C. Replication
D. Reproduction
DURING MITOSIS THE
CHROMOSOMES …
A.
Are cut in half twice
B.
Are equally divided
C. Form a circle in the cell
D. Spread through the cell
IN ASEXUAL REPRODUCTION THE
GENETIC MATERIAL IS
SUPPLIED BY …
A.
One daughter cell
B.
One parent cell
C. Two daughter cells
D. Two parent cells
DAMAGE TO A CELL’S DNA CAN
CAUSE CANCER WHICH RESULTS
FROM …
A.
A slower than normal cell division
B.
A complete stop to all cell division
C. An uncontrolled type of cell division
D. No changes in the genetic instruction
DURING SEXUAL REPRODUCTION
THE CHROMOSOMES OF …
A.
Two separate individuals are combined together
B.
One individual are transferred to another
C. One parent only are copied for its offspring
D. Two separate individuals are split apart
IF EACH HUMAN BODY CELL HAS 46
CHROMOSOMES HOW MANY WERE IN
YOUR VERY FIRST CELL?
A.
23
B.
92
C. 46
D. 100
WHICH OF THESE IS FORMED
DURING FERTILIZATION?
A.
An egg cell
B.
A sperm cell
C. A zygote
D. A gamete
MITOSIS PRODUCES NEW BODY
CELLS AND MEIOSIS PRODUCES…
A.
New body cells too
B.
Body cells and sex cells
C. Sex cells only
D. Red blood cells
MENDEL STUDIED INHERITANCE
PATTERNS IN ...
A.
Pink roses
B.
Fruit flies
C. Siamese cats
D. Pea plants
AN ALLELE IS BEST
DEFINED AS A …
A.
Version of a gene
B.
Specialized enzyme
C. Subunit of DNA
D. Three-base code
THE LETTERS IN THE BOXES
REPRESENT…
T
A.
phenotypes.
B.
genotypes.
T
t
Tt
C. haploid chromosomes.
D. codominant alleles
t
Tt
tt
EXAMINE THE PUNNETT SQUARE BELOW.
THE GENOTYPE IN THE BLANK BOX IS
T
A.
TT
B.
Tt
T
t
Tt
C. tT
D. tt
t
Tt
tt
HOW DO ANIMALS AND PLANTS INTERACT IN
TERMS OF THE TWO GASES INVOLVED IN
PHOTOSYNTHESIS?
A.
Animals take in the CO2 released by
plants and release O2 to the plants.
B.
Animals take in the O2 released by
plants and release CO2 to the plants.
C.
Plants and animals usually compete
for the same O2 available in the air.
D.
Plants and animals usually compete
for the same CO2 available in the air.
A MULE IS THE RESULT OF A CROSS
BETWEEN A DONKEY AND A HORSE. A
MULE IS A …
A.
tetrad.
B.
genotype.
C. phenotype.
D. hybrid.
A TALL PLANT (TT) IS CROSSED WITH A
SHORT PLANT (TT). IF THE TALL F1 PEA
PLANTS ARE ALLOWED TO SELF-POLLINATE …
A.
the offspring will be of medium height.
B.
all of the offspring will be tall.
C. all of the offspring will be short.
D. the offspring can be tall or short.
A HETEROZYGOUS TALL PEA PLANT IS
CROSSED WITH A SHORT PLANT. THE
PROBABILITY THAT AN F1 PLANT WILL BE
TALL IS ….
A.
25%.
B.
50%.
C. 75%.
D. 100%.
VARIATION IN HUMAN SKIN
COLOR IS AN EXAMPLE OF…
A.
incomplete dominance.
B.
polygenic traits.
C. codominance.
D. multiple alleles.
THE OFFSPRING OF A MATING BETWEEN TWO
HETEROZYGOUS BLACK GUINEA PIGS,
IN WHICH BLACK IS DOMINANT OVER WHITE,
WOULD PROBABLY HAVE A
GENOTYPE RATIO OF
A.
1BB:2Bb:1bb
B.
3Bb:1bb
C. 2BB:2bb
D. 2BB:1Bb:1bb
THE TERM KARYOTYPE REFERS
TO A …
A.
Group of similar alleles
B.
Photograph of chromosome pairs
C. Cross between two plants or animals
D. Pair of traits that are linked
BECAUSE CERTAIN CHEMICAL ELEMENTS
(LIKE CARBON, HYDROGEN, OXYGEN & NITROGEN)
ARE NEEDED BY LIVING THINGS AND THEIR
SUPPLY DOES NOT INCREASE, THESE
ELEMENTS …
A.
Have to be recycled again and again
B.
Eventually disappear
C. Turn into other elements
D. Must be converted to fuel
CELLULAR RESPIRATION IS RESPONSIBLE
FOR…
A.
Releasing energy stored in food
B.
Using the sun’s energy to create starch
C. Making ATP
D. Both A & C
MOST ORGANISMS CANNOT USE
ATMOSPHERIC NITROGEN UNTIL IT HAS BEEN
“FIXED”. WHICH STATEMENT IS ‘FALSE’
ABOUT THE NITROGEN CYCLE.
A.
Decomposers add nitrogen
compounds to the soil.
B.
There is almost NO nitrogen in the
atmosphere
C. Certain types of bacteria carry out
nitrogen fixation
D. Humans have upset the nitrogen cycle
by adding too much nitrogen fertilizer
to the land