BIOL 1001 LSU FINAL TEST BANK QUESTIONS WITH CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) GRADED A+
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BIOL 1001 LSU
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BIOL 1001 LSU
BIOL 1001 LSU FINAL TEST BANK QUESTIONS WITH CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) GRADED A+
What has occured to make separate species have similar internal structures
a. Convergent evolution
b. Divergent evolution
c. Natural selection
d. Artificial selection - Answer-a. Convergent evol...
BIOL 1001 LSU FINAL TEST BANK QUESTIONS
WITH CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) GRADED A+
What has occured to make separate species have similar internal structures
a. Convergent evolution
b. Divergent evolution
c. Natural selection
d. Artificial selection - Answer-a. Convergent evolution
An antibiotic is given repeatedly to treat a recurrent ear infection. It worked initially but
now is no longer effective. This indicates that the Streptococcus bacterium
a. is very sensitive to the antibiotic
b. is infectious only if it is sensitive to the antibiotic
c. is being treated with an antibiotic that has experienced a manufacturing error,
making it infective.
d. experienced natural selection that has allowed the resistant Streptococcus to
survive and multiply - Answer-d. experienced natural selection that has allowed the
resistant Streptococcus to survive and multiply
Which statement about natural selection is most correct?
a. Adaptations beneficial in one habitat should generally be beneficial in all other
habitats as well
b. Different species that occupy the same habitat will adapt to that habitat by
undergoing the same genetic changes
c. Adaptations beneficial at one time should generally be beneficial during all other
times as well
d. Well-adapted individuals leave more offspring, and thus contribute more to the
next generation's gene pool - Answer-d. Well-adapted individuals leave more offspring,
and thus contribute more to the next generation's gene pool
Newts of the genus Taricha are poisonous, deterring their predators from eating them.
The common garter snake, a predator, has evolved a resistance to the newt toxins. This
situation is an example of _____.
a. competition
b. natural selection
c. sexual selection
d. Coevolution - Answer-d. Co-evolution
Seemingly dissimilar organisms such as hummingbirds, humans, and whales have
similar
skeletal structures. The most directly suggested that
a. Dissimilar organisms might have evolved from a distant, common ancestor
b. Advantageous changes can be passed along to offspring
, c. Only the best-adapted organisms can survive
d. Most evolution occurs rapidly following a mass extinction
e. All of the listed responses are correct - Answer-a. Dissimilar organisms might have
evolved from a distant, common ancestor
Why is inbreeding so dangerous?
a. It decreases the genetic similarity within a population
b. Decreases the likelihood of genetic disorders
c. It encourages random mating
d. Genetic similarity amongst mates can cause homozygosity - Answer-a. It decreases
the genetic similarity within a population
Why does genetic drift affect a small population more than it affects a large population?
a. A small population will be left with more allele variations.
b. A chance event is more likely to eliminate an allele from a small population,
leaving it with reduced allelic variation.
c. Genetic drift always kills off small populations.
d. A small population will experience gene flow. - Answer-b. A chance event is more
likely to eliminate an allele from a small population
How do homologous structures arise?
a. Divergent evolution
b. Convergent evolution
c. Natural selection
d. Environmental pressures - Answer-a. Divergent evolution
In a population of 25 individuals, 12 are homozygous dominant, 4 are homozygous
recessive, and 9 are heterozygous. WHat is the allele frequency of dominant alleles?
Recessive?
a. 12/25 ; 13/25
b. 21/25 ; 4/25
c. 24/50 ; 16/ 50
d. 33/50 ; 17/50 - Answer-c. 24/50 ; 16/50
A population not being in equilibrium could be do to which of the following
a. No mutations
b. Population being too small
c. Lack of gene flow
d. Non random mating - Answer-c. Lack of gene flow
No one is certain what the function of the human appendix is. But, one thing we do
know
is that we can live without it, without noticeable consequences. Therefore, the human
appendix is an example of a(n)
a. Homologous structure
b. Vestigial structure
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