1) in gymnosperms and angiosperms, seeds disperse the _________ stage of the life
cycle and in mosses and ferns, spores disperse the ___________ stage of the life cycle.
a. sporophyte; sporophyte
b. gametophye; sporophyte
c. sporophyte; gametophyte
d. microsporocytes; megasporocytes
2) identify the correct sequence of events for the digestion of starch?
a. salivary amylase is produced by the salivary glands
b. starch digestion begins in the mouth
c. starch digestion begins in the stomach
d. starch is converted into maltose
e. starch is converted into glycogen
f. maltose is digested into glucose in the small intestineg. glucose is absorbed in the
small intestineh. glucose is absorbed in the large intestine
a. a – b – d – f – g
b. a – c – d – f – h
c. a – b – e – f – g
d. b – c – a – g – h
e. a – b – e – f – g
3) darwin’s geometric ratio of increase pertains specifically to
a. the inheritable variations found in a population.
b. the artificial selection of traits in plants or animals.
c. the inheritance of acquired traits.
d. the overproduction potential of a species.
4) air with varying amounts of co2, within the ranges found in nature, is forced across
leaf surfaces and into sub-stomatal cavities; this produces stomatal closure.
a. supports both hypothesis i and ii.
b. supports only hypothesis i.
c. supports only hypothesis ii.
d. supports neither hypothesis.
5) a common method used to introduce rdna into bacterial host cells is
a. viral infection.
b. bacteriophage infection.
c. plasmid transfer.
d. microinjection of dna.
e. laser irradiation of cells in a fluid containing dna.
6) which of the following eye conditions is not treated with corrective lenses?
a. farsightedness
b. cataracts
c. nearsightedness
d. astigmatism
e. nearsightedness and astigmatism are not treated with corrective lens.
7) a fetus born at twenty-four weeks has a chance of surviving, although it may have
a. immature lungs and breathing difficulties.
b. kidneys that fail to function.
c. an incomplete digestive system.
d. problems with brain development.
e. an incomplete heart and circulatory system.
8) the name monocot and eudicot are derived from the differences in the number of
a. roots.
b. cotyledons.
c. seeds.
d. none of the choices are correct.
9) if early viking explorers in greenland and north america had survived and become
the main ancestors of early north american settlers, rather than the mixture of
immigrants from across europe and other continents, today there would be a much
higher incidence of nordic traits in the u.s. population. such a scenario would
demonstrate
a. gene flow from continent to continent.
b. the bottleneck effect.
c. genetic drift among the original viking explorers.
d. directional selection.
e. the founder effect.
10) when a finger or other appendage is severed in an accident, it is possible to
surgically rejoin most tissues (bone, skin, etc.), which will then grow and heal.
however, a cut through an appendage nerve is currently very difficult to reconnect. what
structures are severed when the nerves in an appendage are severed?
a. axons
b. synapses
c. cell bodies
d. dendrites
e. interneurons
11) malpighian tubules are the excretory system attached to the gut in
a. earthworms.
b. insects.
c. humans.
d. planarians.
12) the likely effect on a neuron of two excitatory signals and twenty inhibitory signals
is
a. transmission of a nerve impulse.
b. transmission of a nerve impulse releasing inhibitory neurotransmitters at the next
synapse.
c. prohibiting the axon from firing.
d. confused integration.
13) a male leopard nuzzles the female’s neck to calm her and to stimulate her
willingness to mate. this is an example of _____ communication.
a. chemical
b. visual
c. tactile
d. auditory
14) which form of communication is used by social insects to modify the behavior of
the colony?
a. chemical communication
b. visual communication
c. auditory communication
d. none of the choices are used by social insects.
e. all of the choices are used by social insects.
15) an animal with a ladder like nervous system is the
a. earthworm.
b. cat.
c. hydra.
d. octopus.
e. planarian.
16) an example of territoriality is
a. barnacles attached to a boat bottom.
b. a cloud of moths attracted to a light.
c. a swarm of mosquitoes hovering around a sweaty person.
d. a red-winged blackbird singing to ward off other males and attract a female to the
nest in his fencerow.
e. all of the choices are correct.
17) if a person steps on a tack their somatic system will take over and produce a reflex
action. a reflex action
a. is an automatic, involuntary response.
b. does not require the central nervous system.
c. is normally controlled consciously.
d. has no protective value.
e. is only found in humans.
18) a fifteen-foot tree growing in a fence row is used as a fence post, to which barbed
wire is stapled at a height of five feet. years later, the tree is thirty feet high. the fence is
a. twenty feet up because it added fifteen feet to the original five-foot height.
b. split because the trunk grew up but the bottom stayed at ground level.
c. fifteen feet up because the tree doubled in height.
d. twenty feet up, still ten feet from the top of the tree.
e. approximately five feet up since a tree grows longer at the tips of its stem, branches
and roots.
19) differentiation is characterized by
a. cellular division and growth.
b. cells becoming specialized in structure and function.
c. body parts being shaped and patterned into a specific form.
d. all of the choices are correct.
e. none of the choices are correct.