1) which line of defense would be the most severely impacted if a person was to suffer
3rd degree burns across the majority of their lower body?
a. innate immunity
b. adaptive immunity
c. production of t & b cells
d. the production of complements and interferons
2) two species of the garter snake in the genus thamnophis are found in the same
geographic region. these species are not likely to meet and attempt to reproduce
because one lives mainly in the water, while the other species spends most of its time on
land. this is known as
a. behavioral isolation.
b. habitat isolation.
c. temporal isolation.
d. zygote mortality.
3) in what way does caffeine affect the urinary system?
a. caffeine blocks the actions of adh causing the proximal convoluted tubule to reabsorb
less water which leads to an increased amount of urine formation.
b. caffeine increases the actions of adh causing the proximal convoluted tubule to
reabsorb less water which leads to an increased amount of urine formation.
c. caffeine blocks the actions of adh causing the proximal convoluted tubule to reabsorb
more water which leads to a decreased amount of urine formation.
d. caffeine blocks the actions of adh causing the glomerular capsuleto reabsorb less
water which leads to an increased amount of urine formation.
e. caffeine increases the actions of adh causing the distal convoluted tubule to reabsorb
less water which leads to an increased amount of urine formation.
4) some genes can bring about radical changes in body shape and organs. the pax6 gene
is one such gene and is involved in
a. determining the location of repeated structures in all vertebrates.
b. the development of limbs.
c. eye formation in all animals.
d. breast cancer.
5) which of the following structures is found in the eudicot seed but not in the monocot
seed?
a. radicle
b. cotyledon
c. plumule
d. pericarp
6) ___________ proposed that clay may have served as the site of polymerization of
monomers to produce both nucleic acids and proteins at the same time.
a. stanley miller
b. graham cairns-smith
c. thomas cech
d. aleksander oparin
e. sidney fox
7) which statement about the blending concept of inheritance is correct?
a. a cross between a tall man and a short woman would always produce children of
medium height.
b. a cross between a tall man and a short woman can produce some children that are tall
while others are short.
c. a cross between a tall man and a short woman produce tall children who can then
produce short grandchildren.
d. genetic material is unstable which accounts for such a wide diversity in our offspring.
8) which statement is not true about photosystems?
a. photosystem i passes electrons on to photosystem ii.
b. each photosystem contains numerous pigment molecules that act as antennas to
capture light.
c. photosystem i contains a reaction center molecule that loses electrons which are then
replaced by electrons from water.
d. electrons in the reaction center molecule are excited by absorbed solar energy and are
passed along to an acceptor molecule.
9) which of the following defense systems would most likely have evolved in response
to the leaves of a plant being preyed upon by aphids?
a. after the plant is chewed it produces a proteinase inhibitor that will destroy the
digestive enzymes of the predator feeding upon it. the proteinase inhibitor will be
produced throughout the entire plant in order to discourage predation in other areas of
the plant.
b. after the plant is chewed it produces a proteinase inhibitor that will destroy the
digestive enzymes of the predator feeding upon it. the proteinase inhibitor is produced
at the site of injury in an attempt to stem the loss of phloem from the site of injury.
c. the leaves of various plants have evolved to resemble the eggs butterflies in an
attempt to decrease the number of butterflies that lay eggs on them.
d. the plants produce tannins in the outer leaves in an attempt to discourage predation
by insects.
e. all of the choices are correct.
10) during the spring and fall each year thousands of maple trees are tapped for their
fluids in order to make “real” maple syrup. if you were to tap into a maple tree to
extract the syrup (sucrose) which tissue layer do you want to tap into?
a. phloem
b. xylem
c. epidermis
d. ground tissue
e. periderm
11) the dominant plants in modern times are the _________ due to their relationship
with animal pollinators.
a. gymnosperms
b. angiosperms
c. club mosses
d. ferns
12) the alpha helix and beta sheet are found at which level of protein organization?
a. primary structure
b. secondary structure
c. tertiary structure
d. quaternary structure
13) natural selection was independently proposed as a means of evolution by darwin
and
a. lyell.
b. wallace.
c. leclerc.
d. lamarck.
14) which of the following is/are an atom, an isotope and an ion?
a. h+
b. 2h or deuterium
c. 3h or tritium
d. h2 or hydrogen gas
e. all of the choices are atoms, isotopes and ions.
15) a study is conducted to determine the average length and weight of loblolly pine
tree needles in the southeast united states. is this data obtained through observation or
experimentation?
a. observation
b. experimentation
c. neither observation nor experimentation
d. both observation and experimentation
16) all of the following are means of genetic recombination in prokaryotes except
a. conjugation.
b. transformation.
c. transduction.
d. crossing over.
incorrect
17) molecular data suggests that land plants evolved from
a. charophytes.
b. rhodophyta.
c. dinoflagellates.
d. the water molds.
e. ciliates.