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1) which of the following would result in reproductive isolation?
a. two populations of crickets are indistinguishable in physical features, but the females
in each group only come to the different songs of their males.
b. fruit flies on one hawaiian island live for hundreds of generations and do not come in
contact with fruit flies on another island except when blown there by rare tropical
storms.
c. one brood of the seventeen-year cicada emerged in 1987 (and will do so every 17
years) and lives a few months as adults; another brood emerged in 1992 (and will do so
every 17 years); the larvae of both feed side-by-side on tree roots.
d. a lion and a tiger mate in the artificial confines of a zoo but the offspring is infertile.
e. all of the choices are correct.
2) the term "reducing atmosphere" for the early earth means that the atmosphere
a. was much thinner around the surface of the earth than now.
b. contained only two or three kinds of gases.
c. contained little or no free oxygen.
d. contained little or no free nitrogen.
e. contained little or no carbon dioxide.
3) which of the following is mismatched?
a. bioinformatics - the study of a genomic and proteomic information using computer
analysis
b. polymerase chain reaction - process that separates dna fragments according to size
c. genomics - the study of the genomes of humans and other organisms
d. proteomics - the study of species' proteins
incorrect
4) the sense of smell is unique because it
a. may be associated with vivid memories.
b. has direct connections to the limbic system and associated emotions.
c. works in conjunction with the sense of taste to produce a combined smell-taste effect.
d. all of the choices are correct.
5) which process reduces molecular oxygen to water?
a. the citric acid cycle
b. glycolysis
c. the electron transport system
d. fermentation
e. the preparatory reaction
6) which of the following statements best describes the replacement model for the
evolution of early humans?
a. modern humans evolved from archaic humans in africa and then migrated to asia and
europe.
b. modern humans evolved from archaic humans in africa, asia and europe
simultaneously.
c. modern humans evolved from archaic humans in asia and then migrated to africa and
europe.
d. modern humans evolved from neanderthals in europe and then migrated to asia.
e. modern humans evolved from apes in africa and then migrated to asia and europe.
7) which species of homo is most closely related to the australopithecines?
a. erectus.
b. habilis.
c. rudolfensis.
d. ergaster.
8) if a chemical agent acted to make the nuclear envelope pores impermeable to the
passage of hormones, what effect would it have?
a. neither steroid nor non-steroid hormones would be effective.
b. steroid hormones would continue to be effective but non-steroid hormones would be
ineffective.
c. non-steroid hormones would continue to be effective but steroid hormones would be
ineffective.
d. both steroid and non-steroid hormones would continue to be effective.
9) study the series of pictures to identify the process as:
a. facilitated transport
b. active transport
c. passive transport
d. osmosis
10) animals are classified according to all of the following features except
a. presence or absence of segmentation.
b. mode of reproduction.
c. type of body symmetry.
d. number of germ layers.
e. molecular data.
11) what is the first step in producing a transgenic animal?
a. implantation of a donor egg into the host mother.
b. inject the desired gene(s) into a donor egg.
c. transgenic organism produces offspring that have the desired gene which can then
produce more transgenic offspring.
d. transgenic eggs are harvested from the surrogate mother.
12) molluscs share a three-part body plan consisting of a
a. scolex, proglottids, and an anus.
b. corona, stomach, and intestines.
c. visceral mass, mantle, and foot.
d. eyespots, digestive system, and nervous system.
