The process by which species cease to exist is
What is extinction?
Yellow beetle and green beetles live in the rainforest canopy. You would expect:
What is the green population will increase and the yellow will decrease?
What is the vocabulary for "survival of the fittest"?
What is Natural Selection?
Darwin observed that the shape of these finches _________ were well matched with the seeds available in their own distinct environment.
Beaks
The process through which species change over time
Evolution
The process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals
Natural Selection
What is most likely to happen to moth populations in the picture shown?
Dark moths--hunted easily, dark moths--population decreases.
Does natural selection typically take a long time or a short time?
What is a Loooooooooooooooooooooooooooooooooooooong time?
Farmers and horticulturalists bred broccoli, cauliflower, kale, and cabbage from the wild mustard plant through
What is artificial selection?
Preserved remains of once-living organisms
Fossil
What is a change in a gene that results in a new trait?
What is a mutation?
Evidence of the changes in a species' physical characteristics over long geological periods can best be shown through a study of
What is the fossil record
In an arctic environment, which would survive longer: red foxes or white foxes?
White foxes
This is how giraffes evolved long necks.
More long-necked giraffes survived to pass on their genes.
Who authored the book On the Origin of Species by Means of Natural Selection?
What is Charles Darwin?
A TRAIT that helps an organism to survive and reproduce in its environment
What is Adaptation?
What would happen if the environment changes drastically and no organisms have fitting adaptations?
What is a species could go extinct?
After traveling to the Galapagos Islands, Darwin noticed a lot of variation among beak sizes in Finches. This variation was a result of:
Developing different adaptations in order to survive on particular islands
Can an organism "CHOOSE" to evolve and change?
No, organisms CANNOT CHOOSE to change their genes or traits!
The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?
Dark moth
The occurrence of hereditary or nonhereditary differences between different individuals of a population
Variation
Which of the following statements best explains why genetic variation is important to the survival of a population?
A. It decreases gene flow in the population.
B. It decreases the likelihood of genetic mutation.
C. It increases the size of animals so that more offspring will be produced.
D. It increases the likelihood of an allele being present that is best suited for the environment.
D. It increases the likelihood of an allele being present that is best suited for the environment.
Explain the difference between artificial and natural selection.
Artificial selection is done by humans and focuses on the traits that we find to be the most valuable to us. Natural selection is done by nature and is focused on the traits that would survive best in the environment.
Darwin began to hypothesize that organisms developed traits over time because of the differences in their ___________.
Environments
A characteristic that an organism can pass on to its offspring through its genes.
Trait