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A one-way relationship in which one species benefits at the expense of another is
a. commensalism.
b. competitive exclusion.
c. parasitism.
d. obligate mutualism.
e. a neutral relationship.
RNA can be used as a template for the production of DNA through the action of
a. DNA polymerase.
b. RNA polymerase.
c. reverse transcriptase.
d. ligase.
e. restriction endonuclease.
Annelids
Choose the most appropriate answer for each.
a. two pairs of legs per segment
b. tiny, flattened, crawling forms
c. planarians, flukes, tapeworms
d. nematodes
e. snails, squids, clams
f. wheel animals
g. flagellated collar cells present
h. jellyfish and corals
i. crustaceans, ticks, and insects
j. polychaetes, earthworms, leeches
k. sea urchins, sea stars
A wormlike arthropod with a flattened body and carnivorous eating habits would be
identified as a
a. crustacean.
b. millipede.
c. spider.
d. trilobite.
e. centipede.
Respond to the following statements with reference to the types of connective tissue
listed below.
a. loose connective tissue
b. dense connective tissue
c. adipose
d. cartilage
e. blood
The elasticity of skin is due to the presence of this kind of tissue.
The club fungi are members of which of the following?
a. Ascomycetes
b. Basidiomycetes
c. Glomeromycetes
d. Chytrids
e. Zygomycetes
Respond to the following statements with reference to the flower parts listed below.
a. megaspore
b. microspore
c. ovule
d. ovary
e. seed
During early development, the plant embryo is most intimately associated with this
structure.
Which of the following does not belong in the clade of class Reptilia?
a. turtle
b. snakes
c. birds
d. lizards
e. all of these belong
Use the five compounds listed below for the following questions.
a. ethanol
b. pyruvate
c. lactate
d. citrate
e. acetaldehyde
This compound is the end product of glycolysis.
The vascular bundles of dicots separate the ground tissue into two zones. Which of the
following correctly describes the arrangement of these zones from outside to in?
a. outermost xylem >>> phloem >>> pith >>> cortex
b. outermost phloem >>> xylem >>> pith >>> cortex
c. outermost cortex >>> phloem >>> xylem >>> pith
d. outermost pith >>> phloem >>> xylem >>> cortex
e. outermost cortex >>> xylem >>> phloem >>> pith
Each tier of the biomass pyramid depicts the ____ of all the organisms in an ecosystem.
a. size
b. number of species
c. dry weight
d. total weight
e. total utilization of materials
During which phase of aerobic respiration is FADH2 produced?
a. glycolysis
b. ethanol production
c. acetyl-CoA formation
d. the Krebs cycle
e. glycolysis and the Krebs Cycle
The cell junction labeled "B" in the figure
a. prevents movement of materials between cells.
b. allows passage of a signal to contract heart muscles.
c. allows the free passage of materials between cells.
d. is found mostly in stomach tissue.
e. is found in most tissues except heart muscle.
Which scientist(s) discovered the basis for the base-pair rule, which states that the
amounts of adenine and thymine match, as do the amounts of cytosine and guanine?
a. Avery
b. Griffith
c. Chargaff
d. Hershey and Chase
e. Pauling
Genes at one locus that affect the expression of genes at a different locus are said to be
a. epistatic.
b. linked.
c. codominant.
d. penetrant.
e. alleles.
The rate of diffusion through a selectively permeable membrane will be lowest when
which of the following is(are) true?
I. Concentration gradients are steep.
II. Temperatures are low.
III. Solutes are small molecules.
a. I only
b. II only
c. I and III
d. II and III
e. I, II, and III
The center for control of motor skills and posture is the
a. cerebrum.
b. pons.
c. cerebellum.
d. thalamus.
e. hypothalamus.
The image of the animal shown above caused quite a media frenzy in recent years due
to reports that it was not extinct. What is it?
a. blue-footed booby
b. ivory billed woodpecker
c. dodo bird
d. red caucaded woodpecker
e. none of these
In general, communities that characterize a biome are arrays of species that are adapted
to
a. specific temperatures.
b. patterns of rainfall.
c. soil type.
d. each other.
e. all of these.
Which of the following choices represents the correct sequence?
a. microspores >>> meiosis >>> gametophyte >>> sperm
b. meiosis >>> microspores >>> gametophyte >>> sperm
c. gametophyte >>> meiosis >>> megaspores >>> eggs
d. meiosis >>> gametophyte >>> megaspores >>> eggs
e. gametophyte >>> mitosis >>> megaspores >>> eggs
Which of these is false about sudden cardiac arrest?
a. It happens more than 300,000 times annually in the United States.
b. It affects only the elderly.
c. Survival is greatly increased by starting CPR within four to six minutes.
d. Prompt defibrillator use increases the chance of survival.
e. None of these are false.
A gene locus is
a. a recessive gene.
b. an unmatched allele.
c. a sex chromosome.
d. the location of an allele on a chromosome.
e. a dominant gene.
Mutation of the B group gene in Arabidopsis thaliana affects development in its
flower's
a. first whorl only.
b. second whorl only.
c. third whorl only.
d. first and second whorls.
e. second and third whorls.
Aspergillus andPenicillium are related because both
a. produce antibiotics.
b. reproduce sexually using ascospores.
c. are club fungi.
d. parasitize human mucous membranes.
e. lack known sexual stages.
Innate immunity is
a. the body's first line of defense.
b. the body's second line of defense.
c. the body's third line of defense.
d. involved with the production of antibodies.
e. associated with all of these.
Which of the following is NOT one of the four major intervals in the geologic time
scale?
a. Mesozoic
b. Proterozoic
c. Carboniferozoic
d. Cenozoic
e. Paleozoic
Which of the following explains why the owl has its head almost upside down?
a. Photoreceptors are concentrated near the bottom of the eye.
b. Photoreceptors are concentrated near the top of the eye.
c. Loud music from a passing car caused damage to the sense of balance.
d. It is trying to remove water from its ear after a hard rain.
e. None of these are an accurate explanation.
The image in the above photograph is a prime example of
a. double mutualism.
b. associative commensalism.
c. interference competition.
d. team predation.
e. parasitism.
Use the figure above to answer the following questions.
The letter "C" above represents
a. uterus.
b. ovary.
c. vagina.
d. urinary bladder.
e. pelvic girdle.
Use the figure above to answer the following questions.
The letter "A" in the above figure represents
a. pericycle
b. endodermis
c. primary xylem
d. root cortex
e. primary phloem
The stages of mitosis plus interphase are listed below. Select the correct phase for each
of the following statements.
a. interphase
b. prophase
c. metaphase
d. anaphase
e. telophase
Condensation and shortening of chromosomes occurs.
The taiga is best described as what type of forest?
a. deciduous
b. thorn
c. evergreen coniferous
d. broad-leafed
e. shrub
Interneurons are found in the
a. dorsal root.
b. spinal cord.
c. sensory neurons.
d. motor neurons.
e. somatic system.
A single atom of carbon may form up to ____ covalent bonds with other atoms.
a. 2
b. 3
c. 4
d. 5
e. 6
What would be the danger in lacking nociceptors?
Labeling.
Ovary
Four features help define __________: a notochord, a dorsal hollow nerve cord, a
pharynx with gill slits, and a tail extending past the anus.
The __________ governs expression of three genes active in lactose metabolism.
The __________ is a system of fluid-filled sacs and canals in the inner ear.
__________ are an ancient fungal group and the only fungi with flagellated spores and
gametes.
A mutant plant that does not exhibit phototropism is found. This plant has a mutation
involving what hormone?
Birds and reptiles save water by eliminating __________ rich wastes as uric acid
crystals.
Is it possible to prevent mutations entirely?
__________ is the science of naming and classifying species.
The first species of a community are __________.
Are all species introductions the fault of humans?
Multicelled, absorptive structures called __________ are on each fold of the small
intestines.
Which trophic level in a food chain would it be most damaging to remove?
The __________ circuit carries blood from the heart to body tissues, and then returns it
to the heart.
Are humans responsible for neurotoxic shellfish poisoning?
What are the two primary factors that can cause deciduous trees to drop their leaves?
