Your Place In Nature Test Questions and Answers
Law of Superposition - Answer-The geologic principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.
Bioturbation - Answer-the disturbance of sedimentary ...
Your Place In Nature Test Questions
and Answers
Law of Superposition - Answer-The geologic principle that states that in horizontal
layers of sedimentary rock, each layer is older than the layer above it and younger than
the layer below it.
Bioturbation - Answer-the disturbance of sedimentary deposits by living organisms
parent horizon - Answer-layer of rock a fossil was buried in
Biogeography - Answer-study of the distribution of organisms around the world
tuffs - Answer-rocks formed by ash layers
Magnetostratigraphy - Answer-The comparison of the pattern of magnetic reversals in a
sequence of strata, with a reference column showing the succession of reversals
through time.
Geochronology - Answer-the branch of geology concerned with the dating of rock
formations and geological events
absolute dating - Answer-any method of measuring the age of an event or object in
years
relative dating - Answer-any method of determining whether an event or object is older
or younger than other events or objects
radiocarbon dating - Answer-a chemical analysis used to determine the age of organic
materials based on their content of the radioisotope carbon-14
dendochrononology - Answer-use of tree rings for relative dating
potassium-argon dating - Answer-a method of dating rocks from the relative proportions
of radioactive potassium-40 and its decay product, argon-40. (> 300 ka)
Uranium Series Dating - Answer-A dating method based on the radioactive decay of
isotopes of uranium. It has proved particularly useful for the period before 50,000 years
ago, which lies outside the time range of radiocarbon dating. Can be applied to
speleothems
Cosmogenic Nuclide Dating - Answer-A method of absolute dating that looks at the ratio
aluminum-26 to beryllium-10 in quartz sand crystals.
, amino acid racemization dating - Answer-uses the rate of biochemical reactions as a
clock, often focuses on the chemicals in an eggshell, leucine
geochemical - Answer-erosion and volcanic activity
Differential Preservation - Answer-some things preserve better than others
Astronomical Theory - Answer-eccentricity, obliquity, precession
astronomical time scale - Answer-ages of geological periods based on astronomy
Biochronology - Answer-Animal fossils can often be dated by comparing them to other,
well-dated species
electron spin resonance spectroscopy dating - Answer-time dependent accumulation of
electrons in crystal lattice of a mineral
geomagnetic polarity time scale (GPTS) - Answer-time scale that shows the onset and
duration of reversal of earth's magnetic field
half-life - Answer-length of time required for half of the radioactive atoms in a sample to
decay
Homins split from panins - Answer-6-8 Ma
Edward Tyson - Answer-Performed a very early anatomical comparison of a
chimpanzee, human, and monkey
Thomas Henry Huxley - Answer-"Darwin's Bulldog" Famous for debates focused on
human origins
Coined term "agnostic"
natural selection - Answer-A process in which individuals that have certain inherited
traits tend to survive and reproduce at higher rates than other individuals because of
those traits.
common descent - Answer-principle that all living things were derived from common
ancestors
Tree of Life - Answer-A diagram depicting the genealogical relationships of all living
organisms on Earth, with a single ancestral species at the base.
traditional morphology - Answer-
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