Bio 200 Test 1 – Poulin CORRECT QUESTIONS & SOLUTIONS(RATED A
7 views 0 purchase
Course
Bio 200
Institution
Bio 200
What does evolution mean? - ANSWER Change over time
conservation biology - ANSWER The integrated study of ecology, evolutionary biology, physiology, molecular biology, and genetics to sustain biological diversity at all levels
protoplanetary disk - ANSWER a large rotating cloud of dust, rocks...
Bio 200 Test 1 – Poulin CORRECT
QUESTIONS & SOLUTIONS(RATED A)
What does evolution mean? - ANSWER Change over time
conservation biology - ANSWER The integrated study of ecology, evolutionary biology, physiology,
molecular biology, and genetics to sustain biological diversity at all levels
protoplanetary disk - ANSWER a large rotating cloud of dust, rocks, and gas
what did the protoplanetary disk consist of? - ANSWER it was composed of hydrogen and helium, which
composed from the Big Bang
Nuclear fusion of hydrogen and helium led to what? - ANSWER The formation of the sun
what are time scales? - ANSWER the history of the planet
precambrian supereon - ANSWER 4.6 bya - 543 mya
paleozoic era - ANSWER 543 mya - 250 mya
meszoic era - ANSWER 250 mya - 65 mya
cenzoic era - ANSWER 65 mya - now
hadean eon (hell eon) - ANSWER oldest precambrian supereon, no ocean, no oxygen, earth was
bombarded by planetoids, which caused the planet to be fully molten
,late hadeon - ANSWER earth surface cools, but from bombardment we see cracks, these cracks released
steam and gases (volcanoes played a part too) , which formed an atmosphere, then clouds were formed,
which led to rain, which led to oceans
When did the hadean eon end? - ANSWER Between 4.3 and 3.8 bya
unicellular organism - ANSWER A single celled organism
Multicellular organisms - ANSWER Organism made up of many cells
Cyanobacterial mats / stromatolites - ANSWER Community consisting of photosynthetic cyanobacteria,
bacteria and diatoms that also fix nitrogen. They form layers/columns
Bacterial fossils is associated with? - ANSWER Cyanobacterial mats
Archean fossils - ANSWER both representatives of the major branches of the tree of life, the bacteria and
the archea
early multicellular organisms - ANSWER a billion years ago multicellular organisms arises, paleontologists
set the appearance of multicellular organism when they see hard shell life
The Paleozoic Era - ANSWER 543-250 mya, hard shell organisms, trilobites very common, arcaeocyathids,
sees first land plants and animals
What did the Paleozoic era end with? - ANSWER The permian, 96% of all life forms go extinct, 70%
terrestrial vertebrates go extinct, only known mass extinction of insects
The Cambrian explosions - ANSWER the rapid appearance of most major animal phyla, probably not such
a big bang
The Mesozoic Era - ANSWER Age of reptiles, 250-65 mya, mammals first seen 200M years ago
, What did the Mesozoic Era end with? - ANSWER It ended with the K-T extinction
K-T boundary - ANSWER layer of iridium-rich material between rocks of the Cretaceous period and rocks
of the Paleogene period that provides evidence of a meteorite impact
Why was the first life in an RNA world? (3) - ANSWER Has hereditary information
Why was the first life in an RNA world? (4) - ANSWER Has catalytic properties
What are clues to the RNA world? - ANSWER Viroids
How do things become living? - ANSWER We have no idea
Morganucodon watsoni - ANSWER inch long mammal who shared characteristics similar to those of a
weasel.meozoic era
Divine Creation - ANSWER a supreme being created the earth, organisms function the way the divine
creator wants them to, species do not change
Anaximander - ANSWER He believed all organisms came from common ancestors or they had common
descent, he also believed in transmission of species
transmutation of species - ANSWER view that species can change and give rise to new species
common descent - ANSWER principle that all living things have a common ancestor
Carolus Linnaeus (1707-1778) - ANSWER He proposed a classification scheme for life on Earth
bionomial nomenclature - ANSWER a system to specify an organism by its genus and species. every
organism is given a scientific name consisting of two parts: its genus and species names
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller shantelleG. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
