Module #8 Test Flashcards
Immutability
The idea that each individual species on the planet was specially created by God and could never fundamentally change
Microevolution
The theory that natural selection can, over time, take an organism and transform it into a more specialized species of that organism
Macroevolution
The hypothesis that processes similar to those at work in microevolution can, over eons of time, transform an organism into a completely different kind of organism
Strata
Distinct layers of rock
Fossils
Preserved remains of once-living organism
Paleontology
The study of fossils
Structural homology
The study of similar structures in different species
Where did Darwin do most of the work that led to his hypothesis of evolution?
While he was on board the HMS Beagle.
Did Darwin ever recant his scientific beliefs?
No
What was the main idea that Thomas Malthus’s work gave to Darwin?
Malthus believed in a constant struggle for survival
What was the main idea that Sir. Charles Lyell’s work gave to Darwin?
Lyell came up with the idea that the present is the key to the past.
What age-old concept was Darwin able to dispel with his research?
Darwin dispelled the idea of the immutability of the species. He showed that species did change
What is the main difference between microevolution and macroevolution?
Microevolution: The same genetic code exists throughout the change. The changes that occur are simply the results of variation within the genetic code.
Macroevolution: Information must be added to the genetic code essentially creating a new genetic code.
Name two creatures that macroevolutionists clam are intermediate links and explain why they are not really intermediate links.
(1) Australopithecus afarensis:{supposed link between man and ape; however, every bone found in creature indicates it is an ape}. (2) Archaeopteryx:
{supposed link between birds and reptiles; however, the fossils tell us it is just a bird}
What is the Cambrian explosion?
Refers to the fact that every major animal phylum in creation can be found in Cambrian rock; thus there was an “explosion” of life.