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Term	Definition
Law of Superposition	The principle that sedimentary rock layers are older than the rock layers that are above it and younger than the rock layers below it.
Fossils can provide evidence of....	past climates, past ecosystems, past behaviors, mountain building, and past biodiversity.
Embryos that have a closer related form means....	they share a more recent common ancestor.
Percentage of species that have gone extinct.	Over 90 %
Relative Age	The age of an object in relation to the ages of other objects.
Absolute Age	The numeric age of an object or event, often found by using radiometric dating.
The shape of fossil leaves can tell us of....	past climate.
In closer related forms, the earlier stages of embryos are...	more similar than later stages.
Finding reef fossils in the desert provide what type of evidence?	The area was once covered by an ocean.
Common Ancestor	An ancestor that is shared by two or more organisms.
Extinction	When a species dies off from the earth.
Embryology	The study of embryos and their development.
Ernst Haeckel	Biologist and artist whose drawings show a commonality in embryology.
Fossil	Any preserved evidence of a past geologic age; usually found in sedimentary rock.
Ontogeny	The development of a species through its life cycle
What can pollen fossils tell us about the past?	The type of plants that lived there.
Cladogram	A diagram that shows relationships between species.
Phylogeny	The relationship of a species through a common ancestor.
Index Fossil	A fossil used to determine the age of a rock layer.
Evolution	Change in heritable traits over successive generations.

Law of Superposition	Definition: The principle that sedimentary rock layers are older than the rock layers that are above it and younger than the rock layers below it.	1	0	false
Fossils	_____ can provide evidence of....	2	0	true
Embryos	_____ that have a closer related form means....	3	0	true
extinct	Percentage of species that have gone _____.	4	0	true
object	The age of an _____ in relation to the ages of other objects.	5	1	true
radiometric	The numeric age of an object or event, often found by using _____ dating.	6	1	true
past climate.	Term: The shape of fossil leaves can tell us of....	7	1	false
stages	more similar than later _____.	8	1	true
covered	The area was once _____ by an ocean.	9	1	true
Common Ancestor	Definition: An ancestor that is shared by two or more organisms.	10	0	false
species	When a _____ dies off from the earth.	11	1	true
Embryology	Definition: The study of embryos and their development.	12	0	false
Ernst Haeckel	Definition: Biologist and artist whose drawings show a commonality in embryology.	13	0	false
Fossil	Definition: Any preserved evidence of a past geologic age; usually found in sedimentary rock.	14	0	false
Ontogeny	Definition: The development of a species through its life cycle	15	0	true
pollen	What can _____ fossils tell us about the past?	16	0	true
Cladogram	Definition: A diagram that shows relationships between species.	17	0	true
Phylogeny	Definition: The relationship of a species through a common ancestor.	18	0	false
fossil	A _____ used to determine the age of a rock layer.	19	1	true
successive	Change in heritable traits over _____ generations.	20	1	true