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1) although there is no connection between the female urinary and reproductive tracts,
there is a connection in males because
a. urine is produced in the nephrons and sperm is produced in the ureters. both then pass
through the urethra to exit the body.
b. urine is produced in the kidneys, but passes through the seminal vesicles for further
absorption of water.
c. both urine and sperm pass through the ureters, which then leads to the urethra.
d. urine is voided from the body through the urethra and the urethra carries sperm
during ejaculation.
2) dinosaurs were the dominant group during the mesozoic era and many scientists
believe that they were
a. endothermic, or warm blooded.
b. ectothermic, or cold-blooded.
c. exergonic, or energy releasing.
d. both endothermic and ectothermic. some scientists believe that certain dinosaurs
were endothermic while others believe that certain dinosaurs were ectothermic.
3) which of the following is not an advantage of having an endoskeleton?
a. the skeleton grows with the animal.
b. endoskeletons can support the weight of a large animal.
c. endoskeleton provides protection to the internal organs.
d. endoskeletons allow for more flexibility.
e. it provides protection for the outermost tissue layer of the organism.
4) organisms today are living in the pleistocene epoch of the cenozoic era.
5) in the lac operon, if lactose is present, which of the following occurs?
a. lactose binds to the repressor, changing its shape so that it can bind to the operator
and the structural genes are not expressed.
b. lactose bind to rna polymerase, which then binds to the promoter and transcribes the
needed genes.
c. lactose binds to the repressor, changing its shape so that it does not bind to the
operator. rna polymerase then transcribes the needed genes.
d. lactose binds to the operon, which attracts rna polymerase, then transcription of the
needed genes occurs.
6) the scientific name of the giant swallowtail is heraclides cresphontes. therefore,
a. it belongs to the genus heraclides.
b. it belongs to the species cresphontes.
c. the specific epithet is cresphontes.
d. all of the choices are correct.
7) in humans, digestion of starches begins in the
a. mouth.
b. esophagus.
c. stomach.
d. duodenum.
e. large intestine.
8) if a sperm cell contains 8 chromosomes, it comes from an animal that has ______
chromosomes.
a. 4
b. 8
c. 12
d. 16
e. 24
9) which of the following structures function(s) to bend light rays?
a. choroid
b. rods and cones
c. ciliary body
d. lens and cornea
e. iris and vitreous humor
10) which process is responsible for moving cellular wastes across the cell membrane?
a. endocytosis
b. exocytosis
c. pinocytosis
d. receptor-mediated endocytosis
11) which of the following does not characterize tundra?
a. permafrost
b. trees
c. shrub
d. caribou
12) if a phylogeny is based on the natural evolution of organisms, it could
a. explain the variations among fossils from rock strata.
b. explain why there are similarities and differences among modern living groups.
c. reflect patterns of shared and unique sections of dna among groups of animals.
d. help predict where unresearched features will be in common, such as how widely a
medicine will be effective among animals.
e. all of the choices are correct.
13) the gulf stream
a. brings tropical caribbean water to the east coast of north america and upper western
europe.
b. makes local climates uniform so that great britain has the same climate as greenland.
c. is the major atlantic ocean current that warms the eastern coast of south america.
d. is the source of "el nino" and is a major fishing ground.
e. all of the choices are correct.
14) which statement is not true about dna replication?
a. it proceeds in a 5'-to-3' direction only.
b. one strand of new dna is replicated faster than the other strand at the replication fork.
c. dna can only replicate at one point on a chromosome at one time.
d. it occurs more rapidly in bacteria than in eukaryotes.
e. replication can only begin at a special origin of replication.
incorrect
15) which of the following statements is not correct about cnidaria?
a. the adult body is bilaterally symmetrical.
b. most are found in shallow coastal marine environments.
c. there are two tissue layers, an outer epidermis and inner gastrodermis.
d. stinging cells contain a threadlike nematocyst released to capture prey.
e. a jellylike mesoglea separates the two tissue layers.
16) identify which of the following groups is composed of minerals
a. iron, calcium, magnesium and zinc
b. iron, magnesium, riboflavin and calcium
c. zinc, glucose, iron and magnesium
d. zinc, iron, calcium and nad+
e. calcium, magnesium, niacin and iron
17) which of the following scenarios is explained by adaptive radiation?
a. the average running speed of a cheetah increases each generation due to the gazelles
getting faster.
b. the toxicity level of the bark of a species of plant increases due to constantly being
attacked by aphids.
c. the color pattern of the moths living in the woods of england become darker as the
levels of pollution increase during the industrial revolution.
d. all of these are examples of adaptive radiation.
18) which statement describes the currently accepted theory of how an enzyme and its
substrate fit together?
a. as the product is released, the enzyme breaks down.
b. the enzyme is like a key that fits into the substrate, which is like a lock.
c. the active site is permanently changed by its interaction with the substrate.
d. as the substrate binds to the enzyme, the shape of the active site changes to
accommodate the reaction.
19) the greek terms for 'small" and "ball" are the root words for
a. proteinoid.
b. polymer.
c. microsphere.
d. coacervate.
e. liposome.
20) in _______, the mouth develops at or near the blastopore.
a. gastrocoelomates
b. blastocoelomates
c. protostomes
d. deuterostomes
e. triploblastics
