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Relative Dating

Radiometric Dating

Isotope

Half Life

Estimates the time during which an organism lived by comparin…

A technique that uses the natural decay rate of unstable isot…

Atoms of an element that have the same number of protons but…

The amount of time it takes for half of the isotope in a samp…

Relative Dating

Estimates the time during which an organism lived by comparin…

Radiometric Dating

A technique that uses the natural decay rate of unstable isot…

Relative Dating

Radiometric dating

Isotope

index fossil

Method of determining the age of a fossil by comparing its pl…

the process of measuring the absolute age of geologic materia…

Atoms of the same element that have different numbers of neut…

a fossil known to have lived in a particular geologic age tha…

Relative Dating

Method of determining the age of a fossil by comparing its pl…

Radiometric dating

the process of measuring the absolute age of geologic materia…

relative dating

radiometric dating

isotopes

half-life

estimates the time during which an organism lived by comparin…

a technique that uses the natural decay rate of unstable isot…

atoms of an element that have the same number of protons but…

the amount of time it takes for half of the isotope in a samp…

relative dating

estimates the time during which an organism lived by comparin…

radiometric dating

a technique that uses the natural decay rate of unstable isot…

relative dating

radiometric dating

isotope

half-life

Method of determining the age of a fossil by comparing its pl…

the process of measuring the absolute age of geologic materia…

Atoms of the same element that have different numbers of neut…

Length of time required for half of the radioactive atoms in…

relative dating

Method of determining the age of a fossil by comparing its pl…

radiometric dating

the process of measuring the absolute age of geologic materia…

relative dating

radiometric dating

isotope

half-life

Method of determining the age of a fossil by comparing its pl…

the process of measuring the absolute age of geologic materia…

Atoms of the same element that have different numbers of neut…

Length of time required for half of the radioactive atoms in…

relative dating

Method of determining the age of a fossil by comparing its pl…

radiometric dating

the process of measuring the absolute age of geologic materia…

Relative Dating

Radiometric Dating

Isotope

Half-life

Estimate of the age of a fossil based on the location of foss…

Technique that uses the natural decay rate of isotopes to cal…

Form of an element that has the same number of protons but a…

Amount of time it takes for half of the isotope in a sample t…

Relative Dating

Estimate of the age of a fossil based on the location of foss…

Radiometric Dating

Technique that uses the natural decay rate of isotopes to cal…

relative dating

radiometric dating

isotope

half-life

a method of determining whether an event or object, such as a…

a method of determining the absolute age of an object, often…

an atom that has the same number of protons as other atoms of…

the time required for half a sample of a radioactive isotope…

relative dating

a method of determining whether an event or object, such as a…

radiometric dating

a method of determining the absolute age of an object, often…

Permineralization

Most fossils form in

Relative Dating

Radiometric Dating

Occurs when minerals carried by water are deposited around a…

Sedimentary Rock

estimates the time during which an organism lived by comparin…

uses the natural decay rate of unstable isotopes found in mat…

Permineralization

Occurs when minerals carried by water are deposited around a…

Most fossils form in

Sedimentary Rock

relative dating

radiometric dating

isotope

half-life

Method of determining the age of a fossil by comparing its pl…

Form of dating that utilizes radioactive decay of an item or…

Atoms of the same element that have different numbers of neut…

The time required for one half of the atoms of a radioisotope…

relative dating

Method of determining the age of a fossil by comparing its pl…

radiometric dating

Form of dating that utilizes radioactive decay of an item or…

Relative Dating

Radio metric dating

Isotopes

Half-life

Estimating the time during which an organism lived by compari…

A technique that uses the natural decay rate of unstable isot…

Atoms of an element that have the same number of protons but…

The amount of time it takes for half of the isotope in a samp…

Relative Dating

Estimating the time during which an organism lived by compari…

Radio metric dating

A technique that uses the natural decay rate of unstable isot…

1.relative dating

2.radiometric dating

3.isotope

4.half-life

estimate of the age of a fossil based on the location of foss…

technique that uses the natural decay rate of isotopes to cal…

form of an element that has the same number of protons but di…

amount of time it takes for half of the isotope a sample to d…

1.relative dating

estimate of the age of a fossil based on the location of foss…

2.radiometric dating

technique that uses the natural decay rate of isotopes to cal…

relative dating

radiometric dating

isotope

half-life

Method of determining the age of a fossil by comparing its pl…

Form of dating that utilizes radioactive decay of an item or…

Atoms of the same element that have different numbers of neut…

The time required for one half of the atoms of a radioisotope…

relative dating

Method of determining the age of a fossil by comparing its pl…

radiometric dating

Form of dating that utilizes radioactive decay of an item or…

relative dating

radiometric dating

isotope

half-life

estimate of the age of a fossil based on the location of foss…

technique that uses the natural decay rate of isotopes to cal…

form of an element that has the same number of protons but di…

amount of time it takes for half of the isotope a sample to d…

relative dating

estimate of the age of a fossil based on the location of foss…

radiometric dating

technique that uses the natural decay rate of isotopes to cal…

relative dating

radiometric dating

isotope

half-life

estimate of the age of a fossil based on the location of foss…

technique that uses the natural decay rate of isotopes to cal…

form of an element that has the same number of protons but di…

amount of time it takes for half of the isotope a sample to d…

relative dating

estimate of the age of a fossil based on the location of foss…

radiometric dating

technique that uses the natural decay rate of isotopes to cal…

relative dating

absolute dating

half life

isotope

the science of determining the relative order of past events…

determining a numerical date for the age of an object

the time for half the parent isotope to decay into daughter i…

two atoms that have the same number of protons but different…

relative dating

the science of determining the relative order of past events…

absolute dating

determining a numerical date for the age of an object

Relative dating

Radiometric dating

Isotope

Half-Life

Estimate of the age of a fossil based on the location of foss…

Technique that uses the natural decay rate isotopes to calcul…

Form of an element that has the same number of protons but a…

Amount of time it takes for half of the isotope in a sample t…

Relative dating

Estimate of the age of a fossil based on the location of foss…

Radiometric dating

Technique that uses the natural decay rate isotopes to calcul…

relative dating

radiometric dating

isotopes

half-life

estimates the time during which an organism lived by comparin…

a technique that uses the natural decay rate of unstable isot…

atoms of an element that have the same number of protons but…

the amount of time it takes for half of the isotope in a samp…

relative dating

estimates the time during which an organism lived by comparin…

radiometric dating

a technique that uses the natural decay rate of unstable isot…

paleontologist

fossils

How fossils form

relative dating

scientist the studies fossils

traces of organisms from the past

permineralization, casts, trace fossils, amber, preserved rem…

how fossils are compared to other fossils based on where they…

paleontologist

scientist the studies fossils

fossils

traces of organisms from the past

relative dating

radiometric dating

isotopes

half-life

estimates the time during which an organism lived by comparin…

a technique that uses the natural decay rate of unstable isot…

atoms of an element that have the same number of protons but…

the amount of time it takes for half of the isotope in a samp…

relative dating

estimates the time during which an organism lived by comparin…

radiometric dating

a technique that uses the natural decay rate of unstable isot…

Relative dating

Radiometric dating

Isotopes

Half-life

used to estimate the time when an organism lived by comparing…

Used to determine a fossils actual age. Makes use of isotopes…

atoms of an element that have the same number of protons, but…

the amount of time it takes for half of the isotope in a samp…

Relative dating

used to estimate the time when an organism lived by comparing…

Radiometric dating

Used to determine a fossils actual age. Makes use of isotopes…

Relative dating

Radiometric dating

Isotope

Half-life

Estimate of the age of a fossil based on the location of foss…

Technique that uses the natural decay rate of isotopes to cal…

Form of an element that has the same number of protons but a…

Amount of time it takes for half of the isotope in a sample t…

Relative dating

Estimate of the age of a fossil based on the location of foss…

Radiometric dating

Technique that uses the natural decay rate of isotopes to cal…

relative dating

radiometric dating

half-life

index fossils

estimates the time during which an organism lived by comparin…

a technique that uses the natural decay rate of unstable isot…

the amount of time it takes for half of the isotope in a samp…

fossils of organisms that existed only during specific spans…

relative dating

estimates the time during which an organism lived by comparin…

radiometric dating

a technique that uses the natural decay rate of unstable isot…

Relative dating

Radiometric dating

Isotope

Half-life

estimate of the age of a fossil based on the location of the…

technique that uses the natural decay rate of isotopes to cal…

form of an element that has the same number of protons but a…

amount of time it takes for half of the isotope in s sample t…

Relative dating

estimate of the age of a fossil based on the location of the…

Radiometric dating

technique that uses the natural decay rate of isotopes to cal…

life history

trade-offs

I. Mating Strategy

Asexual types

lifetime pattern of growth, development, reproduction for a s…

I. Mating Strategy... II. Reproductive effort... III. Categories

A) Asexual vs. Sexual Reproduction

1. 1 cell --> 2 daughter cells ... 2. lateral roots ---> 2 indiv…

life history

lifetime pattern of growth, development, reproduction for a s…

trade-offs

I. Mating Strategy... II. Reproductive effort... III. Categories

Relative Dating

Periods

Epoch

Radiometric Dating

Identifying the age of a fossil of rock by comparing it to an…

Most common unit of time on the geologic time scale, lasting…

Smallest unit of time on the geological time scale and last s…

Measures the age of a material by comparing the amount of a r…

Relative Dating

Identifying the age of a fossil of rock by comparing it to an…

Periods

Most common unit of time on the geologic time scale, lasting…

Relative dating

Radiometric dating

isotope

half-life

estimates the time during which an organism lived. Compares t…

provides an accurate way to estimate the age of fossils using…

atoms of an element that differ in their numbers of neutrons

the amount of time it takes for half of the isotope to decay

Relative dating

estimates the time during which an organism lived. Compares t…

Radiometric dating

provides an accurate way to estimate the age of fossils using…

relative dating

radiometric dating

isotope

half-life

estimate of the age of a fossil based on the location of foss…

technique that uses the natural decay rate of isotopes to cal…

form of an element that has the same number of protons but di…

amount of time it takes for half of the isotope a sample to d…

relative dating

estimate of the age of a fossil based on the location of foss…

radiometric dating

technique that uses the natural decay rate of isotopes to cal…

Fossil

Radio metric dating

Extinct

Cyanobacteria

Preserved or mineralized remains or traces of an organism tha…

Dating of objects through the measurement of relative porport…

term ised to indicate species that have disappeared permanently

grouop of photosynthetic eubacteria

Fossil

Preserved or mineralized remains or traces of an organism tha…

Radio metric dating

Dating of objects through the measurement of relative porport…

Relative dating

Radiometric

Isotopes

Half life

estimates the time during ehich an organism lived by comparin…

a technique that uses natural decay rate of unstable isotopes…

are atms of an element that have the same number of protons b…

is the amount of time it takes for half of the isotopes in a…

Relative dating

estimates the time during ehich an organism lived by comparin…

Radiometric

a technique that uses natural decay rate of unstable isotopes…

Relative dating

Radiometeic dating

Isotope

Half-life

Eatimate of the age of a fossil bases on the location of foss…

Technique that uses the natural decay rate of isotopes to cal…

Form of an element that has the same number of protons but a…

Amount of time it takes for half of an isotope in a sample to…

Relative dating

Eatimate of the age of a fossil bases on the location of foss…

Radiometeic dating

Technique that uses the natural decay rate of isotopes to cal…

Geology

Rock cycle

Superposition

Relative dating

the study of Earth's formation and structure.

the process of rock formation and recycling.

the principle that states that in layers of sedimentary rocks…

a method of sequencing events in the order in which they happ…

Geology

the study of Earth's formation and structure.

Rock cycle

the process of rock formation and recycling.

Permineralization

Natural Casts

Trace Fossils

Amber-Preserved Fossils

An organism dies, sediments cover its body, pressure is appli…

Flowing water might replace the bone and flesh of an organism…

Fossils recording the activity of an organism like footprints.

Organisms trapped in tree resin that hardens into amber after…

Permineralization

An organism dies, sediments cover its body, pressure is appli…

Natural Casts

Flowing water might replace the bone and flesh of an organism…

Permineralization

Natural Casts

Trace Fossils

Amber-Preserved Fossils

An organism dies, sediments cover its body, pressure is appli…

Flowing water might replace the bone and flesh of an organism…

Fossils recording the activity of an organism like footprints.

Organisms trapped in tree resin that hardens into amber after…

Permineralization

An organism dies, sediments cover its body, pressure is appli…

Natural Casts

Flowing water might replace the bone and flesh of an organism…

evidence of the history of life

relative dating

radiometric dating

half life

is found in the fossil record

comparative dating; uses index fossils; doesn't give speicifi…

measures radioactive isotopes; dates rocks and therefore foss…

period of time it takes for half of radioactive isotope to de…

evidence of the history of life

is found in the fossil record

relative dating

comparative dating; uses index fossils; doesn't give speicifi…

Relative dating

Radiometric dating

Isotopes

Half-life

Estimates the time during which an organism lived by comparin…

A technique that uses the natural decay rate of unstable isot…

Atoms of an element that have the same number of protons but…

The amount of time it takes for half of the isotope in a samp…

Relative dating

Estimates the time during which an organism lived by comparin…

Radiometric dating

A technique that uses the natural decay rate of unstable isot…

relative dating

radiometric dating

isotope

half-life

estimates the time during which an organism lived by comparin…

a technique that uses the natural decay of unstable isotopes…

atoms of elements that have the same number of protons but a…

the amount of time it takes for half of the isotope in a samp…

relative dating

estimates the time during which an organism lived by comparin…

radiometric dating

a technique that uses the natural decay of unstable isotopes…

relative dating

radiometric dating

isotope

half life

method of determining the age of a fossil by comparing its pl…

the process of measuring the absolute age of geologic materia…

an atom that has the same number of protons (or the same atom…

Time it takes for half the atoms of an isotope to decay

relative dating

method of determining the age of a fossil by comparing its pl…

radiometric dating

the process of measuring the absolute age of geologic materia…

Relative Dating

Radiometric Dating

Geologic Time Scale

FOUR-STAGE... HYPOTHESIS FOR THE ORIGIN O…

Comparative dating... Uses index fossils... Doesn't give... specific…

measures radioactive... isotopes... dates rocks and... therefore fossi…

The time line of life.

1. inorganic chemicals form simple organic... molecules in prim…

Relative Dating

Comparative dating... Uses index fossils... Doesn't give... specific…

Radiometric Dating

measures radioactive... isotopes... dates rocks and... therefore fossi…

relative dating

radiometric dating

isotope

half-life

estimate of the age of a fossil based on the location of foss…

technique that uses the natural decay rate of isotopes to cal…

form of an element that has the same number of protons but di…

amount of time it takes for half of the isotope a sample to d…

relative dating

estimate of the age of a fossil based on the location of foss…

radiometric dating

technique that uses the natural decay rate of isotopes to cal…

Population ecology

semelparity or big-bang reproduction

iteroparity or repeated... reproduction

fun fact

the study of the distribution and... abundance of organisms in s…

- It is characterized by a single reproductive episode before…

- It is characterized by multiple reproductive cycles over th…

Highly variable or unpredictable environments... likely favor bi…

Population ecology

the study of the distribution and... abundance of organisms in s…

semelparity or big-bang reproduction

- It is characterized by a single reproductive episode before…

relative dating

radiometric dating

isotope

half-life

estimate of the age of a fossil based on the location of foss…

technique that uses the natural decay rate of isotopes to cal…

form of an element that has the same number of protons but di…

amount of time it takes for half of the isotope a sample to d…

relative dating

estimate of the age of a fossil based on the location of foss…

radiometric dating

technique that uses the natural decay rate of isotopes to cal…

Relative dating

Radiometric dating

Isotope

Half-life

Estimate of the age of a fossil based on the location of foss…

Technique that uses the natural decay rate of isotopes to cal…

Form of an element that has the same number of protons but a…

Amount of time it takes for half of the isotope in a sample t…

Relative dating

Estimate of the age of a fossil based on the location of foss…

Radiometric dating

Technique that uses the natural decay rate of isotopes to cal…

relative dating

radiometric dating

isotope

half-life

estimate of the age of a fossil based on the location of foss…

technique that measures the natural decay rate of isotopes to…

form of an element that has the same number of protons but a…

amount of time it takes for half of the isotope in a sample t…

relative dating

estimate of the age of a fossil based on the location of foss…

radiometric dating

technique that measures the natural decay rate of isotopes to…

Relative Dating

Radiometric Dating

Isotope

Half-Life

estimate of the age of a fossil based on the location of foss…

technique that uses the natural decay rate of isotopes to cal…

form of an element that has the same number of protons but a…

amount of time it takes for half of the isotope in a sample t…

Relative Dating

estimate of the age of a fossil based on the location of foss…

Radiometric Dating

technique that uses the natural decay rate of isotopes to cal…

Adaptations of organisms that influenc…

Limited access to energy and other res…

Species that produce large young

Turner and Trexter (1998) found for da…

1) Number of offspring ( influences the offsprings' size & fe…

A trade-off between number and size of young

generally produce fewer young

females that produced larger eggs laid fewer, and larger fema…

Adaptations of organisms that influenc…

1) Number of offspring ( influences the offsprings' size & fe…

Limited access to energy and other res…

A trade-off between number and size of young

Permineralization

Natural Casts

Trace Fossils

Amber-Preserved Fossils

An organism dies, sediments cover its body, pressure is appli…

Flowing water might replace the bone and flesh of an organism…

Fossils recording the activity of an organism like footprints.

Organisms trapped in tree resin that hardens into amber after…

Permineralization

An organism dies, sediments cover its body, pressure is appli…

Natural Casts

Flowing water might replace the bone and flesh of an organism…

Adaptations of organisms that influenc…

Limited access to energy and other res…

Species that produce large young

Turner and Trexter (1998) found for da…

1) Number of offspring ( influences the offsprings' size & fe…

A trade-off between number and size of young

generally produce fewer young

females that produced larger eggs laid fewer, and larger fema…

Adaptations of organisms that influenc…

1) Number of offspring ( influences the offsprings' size & fe…

Limited access to energy and other res…

A trade-off between number and size of young

Geologic record

Granite

Stromatolites

Plate tectonics

The complete history of life on earth; divided into eons, era…

A light igneous rock that forms the foundation for the contin…

Mounds of layered rock formed by photosynthetic bacteria; the…

The theory that the earth's crust is broken up into a series…

Geologic record

The complete history of life on earth; divided into eons, era…

Granite

A light igneous rock that forms the foundation for the contin…

Relative Dating

Radiometric dating

Isotope

Half-life

Estimate of age of a fossil based on the location of fossils…

Technique that used the natural decay rate of isotopes to cal…

Form of an element that has the same number of protons but a…

Amount of time it takes for half of the isotope in a sample t…

Relative Dating

Estimate of age of a fossil based on the location of fossils…

Radiometric dating

Technique that used the natural decay rate of isotopes to cal…

Radiometric dating

Radioisotopes

Half-life

Spontaneous origin

Calculation of the age of an object by measuring the proporti…

Unstable elements (parent) that break up and give off energy…

The time it takes for one-half of a given amount of a radiois…

The process through which life is thought to have developed w…

Radiometric dating

Calculation of the age of an object by measuring the proporti…

Radioisotopes

Unstable elements (parent) that break up and give off energy…