According to Darwin

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According to Darwin
Systems
Early Earth
Fossils
Early Life
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According to Darwin, during the voyage of the
Beagle, where were many of his observations made?
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The Galapagos Islands
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According to Darwin, What was one structural
adaptations of the finches that he observed?
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Different shapes of the beaks
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According to Darwin, fitness arise as a result
of___
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adaptations?
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According to Darwins theory of natural
selection, individuals who survive are most
likely the ones best adapted to exist in their
environment. Their survival is due to the _____
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Possession of adaptations that maximize fitness
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According to Darwins theory of natural
selection, the individuals that tend to survive
are those that have
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Variations best suited to the environment
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Where are most fossils formed?
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Sedimentary rock
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Length of time required for half of the
radioactive atoms in a sample to decay is its
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Half-life
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To be useful as an index fossil, a species must
have existed for ___ period over a ___geographic
range
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Short period over a wide geographic range.
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List 3 examples of fossils
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Eggs, footprints and body part
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List three things that fossil records show.
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Most organism that ever lived are
extinct.Fossils occur in a particular
order.Modern organisms have unicellular ancestors
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Why did oceans not exist on Earth nearly 4
billion years ago?
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Water remained as a gas because Earth was so hot.
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What two poisonous gases probably existed in
Earths atmosphere?
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Hydrogen cyanide and carbon monoxide
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Miller and Urey tried to simulate the conditions
of___
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Earths atmosphere
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Modern experiments similar to Millers and Ureys
demonstrate that simulations of conditions
thought to exist on early earth can produce ___
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Some RNA bases
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List three conditions that characterizes Earth
before the ocean formed
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Volcanic activity, bombardment by comets and
asteroids, an atmosphere of poisonous gases
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The first living organisms were probably ___
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prokaryotes
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A necessary condition for the evolution of life
on Earth was__
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Liquid water
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The endosymbiont Theory states that eukaryotic
cells arose from__
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Communities of prokaryotes living in a larger cell
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What do proteinoid microspheres have in common
with with cells?
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They both can store and release energy. Both are
selectively permeable
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If proteinoid microspheres were ancestral to the
first cells, what must have occurred at some
point?
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DNA or RNA became contained in the microspheres.
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Provides the site for formation of blood cells
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Bone marrow-Skeletal
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Regulates the hormones
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Endocrine
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Helps maintain body temperature
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Integumentary
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Stores minerals
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Skeletal
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Maintains Homeostasis
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All systems
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