Natural Selection
The Four Tenets
Russel Wallace's Work
Examples
100
What is natural selection?
The mechanism through which organisms go through evolution.
100
What are the four tenets of natural selection?
The four component of natural selection.
100
Who was Russel Wallace?
He was a British naturalist, explorer, geographer, anthropologist, and biologist.
100
Which is the most known species Darwin studied in the Galapagos? What variations did he study?
Finches. Studied beaks' shape and size variation.
200
Where is the most known location where Darwin studied his theory?
The Galapagos Islands
200
What happens when reproductive isolation takes place?
New species form.
200
How did he met Darwin?
They both shared an interest in the theory of the origin of species.
200
When pesticides are used frequently to eliminate a population of pest insects what will happen over time?
The insects will develop and pass on resistance to their offspring. Within a few generations, the pesticide will become ineffective and these few resistant insects are the most likely to survive.
300
Which observation did Darwin not conclude on?
a) Traits are rarely heritable and appear after a certain number of generations
b) More offspring are produced than can survive
c) Offspring vary in their heritable traits
a) Traits are rarely heritable and appear after a certain number of generations
300
What exists among individuals and is a heritable variation?
Phenotypic variation
300
Wallace is known as one of the founders of ....
Biogeography
300
Explanation of image:
Green beatles are most likely eaten so the brown beatles are the most likely to survive and produced more offspring.
400
Define natural selection in your own words.
Open to more than one correct answer.
400
Which individuals are the most likely to survive?
Those with heritable traits better suited to the environment.
400
What did he believe occurred to human experience after death? And what other conclusion did he have on living things?
He believed human experience persisted after death.
Concluded that all living things evolve.
400
If a species of white hares can camouflage in winter, while brown-haired hares, camouflage during the warm season, what occurs to each species in the different seasons? Elaborate.
The white hares are most likely to camouflage from predators during winter but are the weakest prey during the warm seasons.
Meanwhile, the brown hares are most vulnerable in winter and can camouflage in spring.
500
What are the effects of natural selection on an organism?
1. Create more probabilities to survive and leave offspring when resources are scarce.
2. Traits to appear more frequently in the consequent generations.
3. Become more adapted and accustomed to their environment
500
How can new generations survive?
More individuals with characterized traits are produced for survival.
500
What was he believe regarding natural selection?
Wallace believed that natural selection could not explain the human intellect.
500
Give a real example of natural selection (evolution) evident nowadays either in animals or humans.
Open to many LOGICAL answers.