1) the term “protists” is used to refer to eukaryotes that are not plants, animals or fungi.
2) rejection of transplanted tissue is treated with immunosuppressive drugs that prevent
the activity of b cells.
3) the distribution of mammalian fossils on australia, south america and africa help
support continental drift.
4) parasitism, competition, and predation are density independent factors that help
control population size.
5) the classification system most commonly used by biologists today contains five
domains.
6) auditory communication is the most effective form of communication in every
environment inhabited by animals.
7) fermentation is the process that produces bubbles of carbon dioxide that makes bread
dough rise.
8) monosomy occurs when an individual has only one of a particular type of
chromosome.
9) adaptive defenses in the body takes longer to become functional, since cells must be
recruited to produce specific responses against the antigens.
10) strawberry plants vegetatively reproduce by forming new plants where the nodes of
stolons touch the ground.
11) fossils of vascular plants appear earlier in the fossil record than those of
nonvascular plants.
12) what is the main reason that mammals underwent adaptive radiation after the
demise of the dinosaurs?
a. they had to adapt in order to physically survive the ice age.
b. the mammals had little competition so it was easier for them to evolve into the niches
that were once occupied by the dinosaurs.
c. they had an “inner need” to become better suited to their environment.
d. none of the above.
13) british land snails are an example of disruptive selection. in the grassy fields, the
light-banded snails escape bird predators. in the darker forest, the dark snails survive
and the light-banded snails are eaten. as long as the snails continue to cruise across the
british landscape mating at the same season, why doesn’t this “disruptive selection”
eventually lead to two separate species?
a. there is no reproductive isolation to prevent gene flow.
b. they are already two separate species, and the intermediate forms are hybrids.
c. the color forms are probably not genetically determined.
d. there must be some unknown factor producing an equal stabilizing selection “to hold
the species together.”
e. this will result in the formation of two species if given long enough time.
14) the preparatory reaction breaks
a. glucose into pyruvates.
b. pyruvates into glucose.
c. pyruvates into acetyl-coa and carbon dioxide.
d. pyruvates into acetyl-coa and water.
e. acetyl coa into pyruvates and carbon dioxide.
15) which of the following conditions is in defiance of the second law of
thermodynamics?
a. as our body converts glucose into atp some of the energy is given off in the form of
heat.
b. the temperature of your car’s engine begins to increase as you drive to work.
c. when we are cold our body shivers as a response to the decrease in body temperature.
d. none of these are in defiance of the second law of thermodynamics.
16) which of the following would not be a molecule used for energy storage?
a. starch
b. cellulose
c. glycogen
d. chitin
incorrect
17) which of the following plant hormones is associated with the closure of stomata
when a plant experiences water stress?
a. abscisic acid
b. auxin
c. cytokinin
d. gibberellins
18) identify the hormone that is released by the anterior pituitary but does not control
other endocrine glands.
a. prolactin
b. thyroid stimulating hormone
c. adrenocorticotropic hormone
d. gonadotropic hormone
e. oxytocin
19) atp is considered a high-energy compound because under cellular conditions, 7.3
kcal per mole of energy is released when a bond is broken between:
a. the base adenine and the sugar ribose.
b. the adenosine and the phosphate groups.
c. the base adenine and the phosphate groups.
d. the adenosine diphosphate and the third phosphate.
e all of the bonds release energy as atp is completely broken down.
20) all the members of a single species that occupy a particular area at the same time
are known as a:
a. subspecies.
b. gene pool.
c. population.
d. group.
e. sub-population.
21) which of the following species, in the human evolutionary line, are believed to have
been bipedal but still spent time living in the trees?
a. australopithecus afarensis
b. homo habilis
c. ardipithecus ramidus
d. australopithecus africanus
e. dryopithecus
22) figure a is an 8-cm. cube. figure b is eight, 4-cm cubes. figure c is sixty-four, 2-cm
cubes.
what figure has the greatest surface area : volume ratio?
a. figure a
b. figure b
c. figure c
d. all of these are the same.
23) which list of features is associated with the small intestine?
a. duodenum, bile and villi
b. duodenum, chyme and villi
c. cecum, bile and lacteals
d. lacteals, appendix and villi
24) what is the correct sequence of events during the life cycle of a moss?
a. gametes are produced in the archegonia and antheridia
b. spores are released
c. the zygote develops within the archegonium
d. the mature sporophyte develops from the gametophyte and produces spores
e. flagellated sperm swim towards the egg for fertilization
f. spore germinates into the protonema
a. a – e – c – d – b – f
b. a – e – f – d – b – c
c. a – b – d – c – b – f
d. f – e – b – d – a – c
25) dna sequencing suggests that among the green algae, the __________ are most
closely related to land plants.
a. volvox
b. spirogyra
c. chara
d. ulva
e. chlamydomonas