Contemporary Issues in Biology Final ~
TCU, Sawey Exam 2026 Questions and
Answers
scopes trial in 1925 - Correct answer--general science teacher who broke the law in
tennessee against teaching "any story that denies the story of the divine creation of
man as taught in the bible, and to teach that man has descended from a lower order
animal"
-found guilty and fined
-since this trial, US supreme court has ruled in favor of teaching evolution in
public schools
galileo - Correct answer--exposed that the earth wasnt the center of the universe
and that the earth orbited the sun
-didnt agree with the catholic church
-house arrest for last 9 years of his life
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,the big bang theory - Correct answer-the earth was formed 4.6 billion years ago,
dated with radioisotope clocks
one of the top unanswered questions - Correct answer-how and where did life arise
on earth
# of known species on earth - Correct answer-~1,750,000
what do varieties of domesticated animals result from - Correct answer-darwin said
they resulted from artificial selection
evolution by natural selection - Correct answer--individuals within species are
variable (genetic variation)
-some variation passed on to offspring (heritable)
-more offspring produced than can survive
-survival and reproduction isnt random
ingredients for evolution - Correct answer--long time
-genetic variability
-agents of natural selection (disease, water, predators, temperature) --> extinction is
evidence
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,-inheritance of selected traits
-anatomical evidence of common descent
"lucy" - Correct answer-3.2 million year old ancestor of humans; found in ethiopia
in 1974
"ardi" - Correct answer-breakthrough in 2009; 4.4 million year old human
ancestory; found in ethiopia
how long have homo-sapiens been on earth - Correct answer-thought to be 200,000
years, starting in ethiopia
mutation - Correct answer-change in nucleotide in the base of DNA; not all
harmful; passed down in generations of that descent
genetic markers - Correct answer--men --> track Y chromosome from father to son
-women --> track mitochondrial DNA passed from mother to daughter in the egg
all living humans are related to... - Correct answer-a single woman who lived
roughly 150,000 years ago in africa
chromosomes of today's non-africans.. - Correct answer-first carried out of africa
by hunter gatherer ancestors 50,000 to 70,000 years ago
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, when did humans establish themselves worldwide - Correct answer-12,000 years
ago; before humans and agriculture coincided
how did humans live before agriculture - Correct answer-used tools (needles,
spears, clothes) and lived in small groups spread out of large areas of land
when were large cities and civilizations possible - Correct answer-after we
domesticated wild plants and animals and developed agriculture systems
domesticated plant or animal - Correct answer-modified from its wild ancestors for
its use by humans
early domestication was unintentional - Correct answer-seeds brought back by
hunter gatherers foraging in the wild grew by accident in large latrines and garbage
dumps
later domestication was conscious - Correct answer-scientists planted many
different seeds, selected the best progeny and planted their seeds
domestic crops - Correct answer-selected for maximum productivity and had little
natural pest resistance
pest attack problems - Correct answer-due to not selecting pest resistance during
domestication
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
TCU, Sawey Exam 2026 Questions and
Answers
scopes trial in 1925 - Correct answer--general science teacher who broke the law in
tennessee against teaching "any story that denies the story of the divine creation of
man as taught in the bible, and to teach that man has descended from a lower order
animal"
-found guilty and fined
-since this trial, US supreme court has ruled in favor of teaching evolution in
public schools
galileo - Correct answer--exposed that the earth wasnt the center of the universe
and that the earth orbited the sun
-didnt agree with the catholic church
-house arrest for last 9 years of his life
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,the big bang theory - Correct answer-the earth was formed 4.6 billion years ago,
dated with radioisotope clocks
one of the top unanswered questions - Correct answer-how and where did life arise
on earth
# of known species on earth - Correct answer-~1,750,000
what do varieties of domesticated animals result from - Correct answer-darwin said
they resulted from artificial selection
evolution by natural selection - Correct answer--individuals within species are
variable (genetic variation)
-some variation passed on to offspring (heritable)
-more offspring produced than can survive
-survival and reproduction isnt random
ingredients for evolution - Correct answer--long time
-genetic variability
-agents of natural selection (disease, water, predators, temperature) --> extinction is
evidence
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,-inheritance of selected traits
-anatomical evidence of common descent
"lucy" - Correct answer-3.2 million year old ancestor of humans; found in ethiopia
in 1974
"ardi" - Correct answer-breakthrough in 2009; 4.4 million year old human
ancestory; found in ethiopia
how long have homo-sapiens been on earth - Correct answer-thought to be 200,000
years, starting in ethiopia
mutation - Correct answer-change in nucleotide in the base of DNA; not all
harmful; passed down in generations of that descent
genetic markers - Correct answer--men --> track Y chromosome from father to son
-women --> track mitochondrial DNA passed from mother to daughter in the egg
all living humans are related to... - Correct answer-a single woman who lived
roughly 150,000 years ago in africa
chromosomes of today's non-africans.. - Correct answer-first carried out of africa
by hunter gatherer ancestors 50,000 to 70,000 years ago
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, when did humans establish themselves worldwide - Correct answer-12,000 years
ago; before humans and agriculture coincided
how did humans live before agriculture - Correct answer-used tools (needles,
spears, clothes) and lived in small groups spread out of large areas of land
when were large cities and civilizations possible - Correct answer-after we
domesticated wild plants and animals and developed agriculture systems
domesticated plant or animal - Correct answer-modified from its wild ancestors for
its use by humans
early domestication was unintentional - Correct answer-seeds brought back by
hunter gatherers foraging in the wild grew by accident in large latrines and garbage
dumps
later domestication was conscious - Correct answer-scientists planted many
different seeds, selected the best progeny and planted their seeds
domestic crops - Correct answer-selected for maximum productivity and had little
natural pest resistance
pest attack problems - Correct answer-due to not selecting pest resistance during
domestication
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
