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1) flukes are divided into monogenea and digenea. monogenea have a posterior holdfast
with hooks, clamps, and suckers; digenea have suckers but never hooks and clamps.
monogenea have only one host in the life cycle, and usually live on gills or skin of fish
and amphibians; digenea have at least two hosts and often three or more, and are named
because they have two reproductive states in their life cycle (an adult and
intramolluscan phase). from what you now know, the blood fluke schistosoma would
therefore be
a. an endoparasite and monogenean.
b. an endoparasite and digenean.
c. an ectoparasite and digenean.
d. an ectoparasite and monogenean.
2) double fertilization in an angiosperm produces
a. a diploid zygote and a haploid polar nucleus.
b. a diploid zygote and a diploid endosperm.
c. a diploid embryo and a triploid zygote.
d. a triploid embryo and a diploid endosperm.
e. a diploid zygote and a triploid endosperm.
3) which of the following organisms is helping scientists better understand the evolution
of the immune system because they have a unique feature during their lifecycle?
a. cellular slime molds
b. b cells
c. archaea
d. planaria
e. viruses
4) the proposed advantages of bipedalism, which characterizes hominin evolution,
include making it easier to
a. collect food from overhead.
b. travel and move about.
c. carry food back to their camp or their young.
d. carry their young from place to place.
e. all of these are correct.
5) australopithecines were apelike above the waist and humanoid below the waist. this
is an example of
a. quadripedalism.
b. mosaic evolution.
c. multiregional continuity.
d. none of the choices are correct.
6) human tapeworm infections occur by
a. eating insufficiently cooked infected pork or beef.
b. being bitten by a mosquito.
c. ingesting eggs in contaminated water.
d. eating freshly peeled fruit.
e. all of the choices are correct.
7) action potentials travel down nonmyelinated axons at _____ action potentials travel
down myelinated axons.
a. slower speeds than
b. faster speeds than
c. the same speed
d. variable speeds, sometimes faster and sometimes slower than
8) identify the correct flow of blood through a one-circuit system.
a. ventricle - gill capillaries - systemic capillaries - sinus venosus - atrium
b. ventricle - systemic capillaries - gill capillaries - sinus venosus - atrium
c. ventricle - gill capillaries - systemic capillaries - atrium - sinus venosus
d. ventricle - pulmonary capillaries - atrium - aorta -systemic capillaries
9) a derived trait shared only by angiosperms and gymnosperms is
a. vascular tissue.
b. fruit production.
c. the production of seeds.
d. protection of the embryo.
10) which description best explains the difference between orientation and migration.
a. orientation by birds can be achieved by using the sun or stars in order to determine
the direction they should be flying. navigation is the ability of the birds to change their
direction in response to environmental clues.
b. orientation is the ability of the birds to change their direction in response to
environmental clues. navigation by birds can be achieved by using the sun or stars in
order to determine the direction they should be flying.
c. orientation by birds can be achieved by using the sun or stars in order to determine
the speed they should be flying. navigation is the ability of the birds to change their
direction in response to social clues.
d. orientation by birds can be achieved by using the sun or stars in order to determine
the direction they should be flying. navigation is the ability of the birds to change their
direction in response to predator and prey abundance.
e. orientation by birds can be achieved by using the earth's magnetic fieldin order to
determine the direction they should be flying. navigation is the ability of the birds to
change their direction in response to environmental clues.
11) the jones family has a plan to encourage good behavior in their children. when a
child completes daily chores, that child receives a gold star. the earning of fourteen gold
stars allows the child to choose between a visit to the movie theatre or the park. this is
an example of
a. imprinting.
b. operant conditioning.
c. insight learning.
d. classical conditioning.
e. polyanthrus.
12) which of the following associations of reproductive strategies and their descriptions
are correct?
a. oviparous - egg is deposited in external environment
b. ovoviviparous - produce eggs but retain them inside the female body until hatching
occurs
c. viviparous - the embryo develops inside the body of the female from which it gains
nourishment
d. all of the choices are correct.
13) which type of soil will supply nutrients to plants while its acidity leaches minerals
from rock?
a. humus
b. clay
c. sand
d. loam
14) if individuals exhibiting a dominant phenotype are crossed and produce only
offspring with the dominant phenotype, what would be the logical genotype of the
parents?
a. both are homozygous recessive
b. one is heterozygous and one is homozygous dominant
c. both are homozygous dominant
d. both are heterozygous
e. two of the options may be correct
15) an automobile engine is about 20 - 30% efficient in converting chemical energy to
mechanical energy. cells are about 39% efficient in the transformation of glucose to atp.
the rest of the energy is lost as heat. this is illustrative of the:
a. first law of thermodynamics.
b. second law of thermodynamics.
c. third law of thermodynamics.
d. the cell theory.
16) plants are being genetically engineered to have
a. a requirement for more fertilizer.
b. an increased water requirement.
c. the ability to produce human proteins.
d. increased susceptibility to herbicides.
e. all of the choices are correct.
17) if an individual wanted to hold their breath underwater for a long period of time
they would breath very rapidly prior to the dive. what does this accomplish?
a. they would increase the amount of co2 in their bloodstream which would cause them
to temporarily stop breathing.
b. they would decrease the amount of co2 in their bloodstream which would cause them
to temporarily stop breathing.
c. they would increase the amount of h+ in their bloodstream which would cause them
to temporarily stop breathing.
d. they would decrease the amount of h+ in their bloodstream which would cause them
to temporarily stop breathing.
18) identify a' as the _____
a. inner membrane
b. matrix
c. cristae
d. intermembrane space
e. outer membrane
incorrect
19) which force is responsible for moving water up to the tops of the trees?
a. water stress
b. atmospheric pressure
c. root pressure
d. guttation
e. transpiration
20) all of the following statements about cell suspension cultures are true except
a. digitalis, digitoxin, and quinine are produced by cell suspension culture.
b. large numbers of plants are grown and collected from the natural environment to
produce chemicals in the laboratory.
c. chemicals are produced and extracted in high concentrations, sometimes from
genetically modified cells.
d. cell suspension cultures produce the same chemicals the entire plant produces.
