Who was the scientist who stated the earth is shaped by geological forces that took place over extremely long periods of time
Who was the scientist who estimated that the earth was millions of years old
Who was the scientist who suggested the selective use or disuse of organs would cause an organism to acquire or lose certain traits during their lifetime. The organism would then be able to pass that trait on to their offspring
Who was the scientist who suggested the theory of Natural Selection
Who was the scientist who suggested that the process by which those organisms best suited to their environment will survive and reproduce
Who was the scientist who wrote to Darwin speculating on evolution by natural selection based on his studies of the distribution of plants and animals
What is a change in a population over time
What is the process by which modern organisms have descended from ancient organism
What is a plausible or scientifically acceptable general principle or body of principles offered to explain phenomena
What are the remains of organisms or their imprints that have been preserved by natural processes
What is the process of converting or being converted into a fossil
What is the record in which information about past organisms that is stored in fossils
Who is a scientist who studies ancient life through the fossil record
gaps in the fossil record
When conditions for fossilization are not present such as if an organisms is soft bodied (jellyfish), or when there is extensive erosion that takes place, there may be what?
fossils are formed
Many organisms die and settle into sediment at the bottom of a body of water. The sediment and organisms remains are compressed into rock by pressure of water this explains how _________ _________ ________
relative age dating
What type of dating places events in their proper order or sequence without knowing their absolute age in years
law of superposition
This law states that younger rocks are deposited on top of older rocks
Who stated that giraffes born with longer necks (possibly by mutation) could reach the food above the shorter-necked giraffes, therefore survived and passed on that trait to their offspring. This is an example of what scientists theory
Who stated that giraffes grow long necks to reach the food higher in trees is an example of what scientists theory (not considered to be true)
absolute age dating
This type of dating can determine the age of a fossil by determined by analyzing the elements it contains
When atoms give off particles and energy and change identity to become non-radioactive this is known as what?
What is the time required for half of the atoms of a radioactive substance to decay?
What is the study of the formation, early growth, and development of living organisms?
What is the half life of Carbon 14?
How long would it take a fossil that had 1,000 grams of carbon to have only 125 grams of carbon?
homologous body structure
What structure looks and functions differently, but come from the same part of the embryo (ex. arm, wing, and fin)?
homologous body structure
What structures develop from the same embryonic tissue, but change into different useful forms in the adult (wings, arm, and fin)?
analogous body structure
What structure is similar in purpose; ex. bird, bat, and insect wings are all used for flight?
This is a structure with no useful purpose that has changed or been lost as the organism adapts to new environments, what is it?
A human tail bone, appendix, tonsils, snake limb bone, and a whale's pelvic bone are all examples of what?