BSC 340 Exam 1 questions with accurate answers
"2 charged in eco-terrorism investigation" Ans✓✓✓ ELF and ALF
(earth liberation front and animal)
fire bombing lumber mill bc they're tearing down trees
1st genetic material Ans✓✓✓ RNA
single stranded
a brief history of earth; the origins Ans✓✓✓ Huck Finn/ Mark Twain
asked were stars made or did they just happen
Aristotle thought stars were always there
Alfred Wegener Ans✓✓✓ coined "pangaea"
geophysicist
suggested continents drift, but couldn't explain why
Andrewartha and Birch Ans✓✓✓ ecology is the scientific study of the
interactions that determine the distribution and abundance of organisms
Aristotle Ans✓✓✓ universe is eternal
Arno Penzias and Robert Wilson Ans✓✓✓ 1964
looked for signals from space, only got static
concluded that all of space emits static (cosmic background radiation)
,this is diluted remnants of heat and light from the big bang
asteroid Ans✓✓✓ bigger than meteoroids, originate from asteroid belt
bw Mars and Jupiter
Australia and associated islands Ans✓✓✓ have native monotremes
lots of marsupials
rats and bats were only placentals before humans got there
background extinction rate Ans✓✓✓ things become extinct on their
own
mass extinctions is when it's bigger than background
things have gone extinct but ecosystems still survived
biodiversity Ans✓✓✓ can be measured at various levels
genetic variability w/in one species
usually refers to species richness (how many species)
1.75 million species described, but still several that haven't been
described
Burgess Shale Ans✓✓✓ in Canada rockies
contains marine fossils (15-20 animal phyla)
35 animal phyla exist today, almost all appeared during Cambrian
explosion
, formed when shallow ocean filled by mudslide, which preserves animals
when area uplifted and turned into mountains
cataclysm Ans✓✓✓ big horrendous event
on earth, usually involves something colliding with earth
certainty and uncertainty Ans✓✓✓ if high certainty or low uncertainty,
not diverse (can guess what will find; pine plantation)
if high uncertainty or low certainty, is diverse (tropics)
chemical prospecting Ans✓✓✓ searching for useful chemicals in
different organisms
shamans, herbalists, witch doctors may not want to disclose knowledge
and there aren't many around
can still be helpful in finding new natural remedies
hard to decide who should profit from discoveries of these
native country usually doesnt profit
big countries take financial risk to access, so they get the reward
comet Ans✓✓✓ chunk of ice and rock that originates outside solar
system
visits earth every now and then
common species (EBL) Ans✓✓✓ house sparrows
"2 charged in eco-terrorism investigation" Ans✓✓✓ ELF and ALF
(earth liberation front and animal)
fire bombing lumber mill bc they're tearing down trees
1st genetic material Ans✓✓✓ RNA
single stranded
a brief history of earth; the origins Ans✓✓✓ Huck Finn/ Mark Twain
asked were stars made or did they just happen
Aristotle thought stars were always there
Alfred Wegener Ans✓✓✓ coined "pangaea"
geophysicist
suggested continents drift, but couldn't explain why
Andrewartha and Birch Ans✓✓✓ ecology is the scientific study of the
interactions that determine the distribution and abundance of organisms
Aristotle Ans✓✓✓ universe is eternal
Arno Penzias and Robert Wilson Ans✓✓✓ 1964
looked for signals from space, only got static
concluded that all of space emits static (cosmic background radiation)
,this is diluted remnants of heat and light from the big bang
asteroid Ans✓✓✓ bigger than meteoroids, originate from asteroid belt
bw Mars and Jupiter
Australia and associated islands Ans✓✓✓ have native monotremes
lots of marsupials
rats and bats were only placentals before humans got there
background extinction rate Ans✓✓✓ things become extinct on their
own
mass extinctions is when it's bigger than background
things have gone extinct but ecosystems still survived
biodiversity Ans✓✓✓ can be measured at various levels
genetic variability w/in one species
usually refers to species richness (how many species)
1.75 million species described, but still several that haven't been
described
Burgess Shale Ans✓✓✓ in Canada rockies
contains marine fossils (15-20 animal phyla)
35 animal phyla exist today, almost all appeared during Cambrian
explosion
, formed when shallow ocean filled by mudslide, which preserves animals
when area uplifted and turned into mountains
cataclysm Ans✓✓✓ big horrendous event
on earth, usually involves something colliding with earth
certainty and uncertainty Ans✓✓✓ if high certainty or low uncertainty,
not diverse (can guess what will find; pine plantation)
if high uncertainty or low certainty, is diverse (tropics)
chemical prospecting Ans✓✓✓ searching for useful chemicals in
different organisms
shamans, herbalists, witch doctors may not want to disclose knowledge
and there aren't many around
can still be helpful in finding new natural remedies
hard to decide who should profit from discoveries of these
native country usually doesnt profit
big countries take financial risk to access, so they get the reward
comet Ans✓✓✓ chunk of ice and rock that originates outside solar
system
visits earth every now and then
common species (EBL) Ans✓✓✓ house sparrows
