Evolution Flashcards
what does biological evolution involve?
involves inherited biological change over time
what is microevolution
change in genetic composition with a population or among populations within one species over time
micro =
small
what is macroevolution
evolutionary change above the level of a single species
macro =
large
who was the first scientist to provide evidence for evolution?
charles darwin
what did Charles Darwin not notice when he visited the Galapagos Islands?
he didn’t notice that finches on different islands were different, but related species
True or False
Darwin developed his theory of evolution when he was in the Galapagos islands.
false, it wasn’t until several years later that he looked at his findings retrospectively to understand his observations.
What was Darwin’s view of Fossils and extinction?
He believed that in the place of extinction, perhaps the apparent disappearance of species was actually one species changing into an other
What is Extinction?
the state or process of a species, family, or larger group being or becoming extinct
Who developed the theory of inheritance of acquired characteristics
Lamarck
Who was Alfred Russel Wallace?
A man who independently discovered the theory of evolution.
what was Darwin’s book called
On the Origin of
Species by Means of Natural Selection
Was Darwin’s work well revived?
Nope, LOL
what is first observation for natural selection
Hint: offspring
organisms are capable of producing many more offspring than are needed to just to replace themselves
what is the second observation of natural selection
Hint: populations
most populations are stable in size because not all offspring survive
what was the third observation for natural selection
Hint: resources
resources are limited (food, land, etc.)
what is the first inference of natural selection
Hint: has to do with resources
organisms must compete for these limited resources and many are not successful
what is the fourth observation of natural selection
Hint: variation
there is variation among individuals within species
what is the fifth observation of natural selection
Hint: variation
some of this variation is heritable
what is the second inference of natural selection
Hint: advantage
some heritable variations are likely to provide individuals with a competitive advantage
what is the third inference of natural selection
Hint: offspring
individuals with advantageous variations are likely to leave more offspring so that in the next generation there will be more individuals with that variation
what is the thing needed for natural selection
greater reproductive success
what did darwin describe the process of evolution as?
descent with modification
