Theory of Evolution
Something that can be inherited through genetic characteristics... means that everyone is different!
What is Variation
In natural selection, this is the agent that "selects" for or against traits of an organism.
What is the Environment?
In order for natural selection to occur populations must do this.
What is over- reproduce?
Preserved remains or traces of an organism that lived in the past
What are fossils?
Any trace or remains of a once-living organsim that has been preserved by natural processes.
What is a fossil?
This man's theory of evolution was rejected.
Who was Lamarck?
Any kind of inherited trait that improves an organism's chances of survival and reproduction in a given environment.
What is an adaptation?
Darwin concluded that the mechanism for evolution is this
What is Natural Selection?
Permanent changes in an organism’s DNA
What are mutations?
True or False: Animals that have dominant characteristics will always be dominant in their environment.
What is False?
When organisms try to get their fair share of a limited amount of resources.
What is competition?
OR
What is "survival of the fittest?"
Slang term that describes how organisms that possess the best traits or adaptations for a particular environment are the ones that will successfully pass down their traits to their offspring.
What is "survival of the fittest"?
The climate of a certain area is cold, and snow is found on the ground most of the year. Equal numbers of two populations of rabbits are introduced into this climate by a group of scientists. One of the populations is brown and the other is white. Over several generations, this will happen.
What is there will be more white rabbits than brown rabbits?
Differences in INHERITED traits that may lead to a new species.
What are variations?
A group of the same organism that occupies a specific area in a specific time.
What is population?
The process whereby organisms that have advantages survive and pass their genes onto their offspring.
What is natural selection?
This type of dating is expensive, sometimes not possible, and destroys part of the fossil in the process
What is absolute dating?
List Darwins 4 Steps of Natural Selection
What is
Over Production
Variation
Competetion
Natural Selection
A series of changes within a SPECIES (not an individual) over a period of time
What is evolution?
The random appearance of a new trait in an organism.
What is Mutation?
SHORT periods of RAPID change followed by LONG periods of LITTLE/NO change
What is punctuated equilibrium?
slow, steady and continuous rate of change of one species into another new species are ways to describe this type of evolution.
What is gradualism?
Explain how Darwin’s observations of finches in the Galapagos Islands led to his ideas about natural selection.
He observed that finches on the islands were slightly different from those found on the mainland. He also noted slight differences in finches from island to island.
The difference that he found most notable was the differences in beak shape. It appeared to be different based on the type of food eaten, and therefore Darwin concluded that the finches were adapted for the type of food they ate.
Any variation that makes an organism better able to survive and therefore reproduce within its environment. They are inherited
What are adaptations?
Type of Diagram that acts as scavenger hunt, using characteristics of animals to eventually show a specific name of a species.
What is Dichotomous Key?