Evolution
what is evolution?
Change of population in a species over time.
Who was Charles Darwin?
A geologist and biologist, he was well known for his contributions to the science of evolution.
What does the phrase struggle for existence mean?
members of a population must compete to obtain food, find shelter, and other limited necessities for there survival
what is natural selection?
Organisms best adapted to their current environment survive and reproduce.
What is the Evidence for Common Descent?
Comparative Anatomy, Embryology and Development, Fossil Record, and DNA Comparisons.
Is evolution a random process?
No it is not a random process.
Was Darwin's Theory of Evolution and Natural Selection accepted at first?
No
Why do organisms with greater fitness generally have more offspring than other organisms?
Animals with adaptations that are well suited to their environment can reproduce more because they are successful in hunting and reproducing.
What are 4 reasons natural selection occurs?
reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population.
Will humans always adapting?
Yes they will always be.
Would animals and humans survive without evolution
How did Charles Darwin obtain this information?
By observing dog breeding.
True
Who made the theory of natural selection?
Charles Darwin
Do plants and animals share a common ancestor causing them to have a common descent?
Yes
Examples of Evolution
Peppered moths, Birds that can’t fly, Deer mice, etc.
What did Darwin state?
that all organisms develop/change through natural selection and the traits they inherit ensures their chances of survival.
True or False. Any inherited characteristic that increases an organisms chance of survival is considered an adaptation.
True
How is natural selection related to genetics?
Gene Variations that alter gene activity can introduce different traits in an organism.
Define Common Descent.
A concept in evolutionary biology applicable when one species is the ancestor of two or more species later in time.
What are the three types of evolution?
Divergent,Convergent, and Parallel Evolution.
what are 4 key points of Darwin's theory of evolution?
Inheritance, selection, variation, and time.
Natural Selection is the ability of an individual to survive and reproduce in its specific environment
Fasle
What is the theory of Natural Selection?
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype.
Examples of Common Descent.
Hind limbs in whales, teeth exhibited by chickens, back clippers of bottlenose dolphins.