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?
The vocab word that means change through time. The theory that existing life forms have evolved from earler forms over long periods of time.
What is evolution?
Any trace or remains of a once-living organsim that has been preserved by natural processes.
What is a fossil?
Organisms often have more ____________ than will survive.
What is offspring?
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?
Animals that have certain beneficial traits will survive better over time- survival of the best adapted- nature determines who will "win"
What is natural selection?
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?
Slang term that descibes how organisms that posess the best traits or adaptations for a particutlar 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?
A group of genetically similar organisms that can mate and produce fertile offspring
What is species?
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
Found in the nucleus of a cell, a long nucleic acid molecule containing the genetic instructions for the development and functioning of all living organisms; abbreviation for deoxyribonucleic acid
What is DNA?
The random appearance of a new trait in an organism.
What is Mutation?
How many mutations does each offspring differ from their parents?
What is 175?
Phenomenon characterized by the superficial resemblance of two or more organisms that are not closely related taxonomically.
What is mimicry?
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.
Range of differences in DNA among organisms
What is Genetic Variation?
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?