Download Mechanisms of Evolution -

Mechanisms of Evolution Web Quest
Name:______________________
Hour:____ Date:___________
LMTC Website- Teacher Projects –Biology -‘Mechanisms for Evolution’
McGraw Hill Animation – answer the following questions after watching the animation.
1. Define evolution
2. Is evolution studied at the population level or level of the individual organism? (Circle your answer)
3. List 5 factors that change the proportion of genotypes in a population.
4. Define genetic drift. What two situations lead to genetic drift?
5. What is gene flow?
6. What do mutations provide to a population?
7. How does non-random mating impact a gene pool?
8. Define natural selection.
Complete the table explaining Mechanisms for Evolution. *If they are similar do not repeat content; add other important info and/or examples.
Mechanism
McGraw Hill SAYS…
Berkley SAYS…
PBS SAYS…
Populations
consist
of
individuals
Natural
selection
requires
genetic
Natural selection acts on the heritable
Natural
with different genetic make-ups who variation. Ex: Green Beetles are more
variations of individuals and results in a
Selection
are more successful at leaving
likely to be eaten. Brown beetles are
population that is better adapted to its
offspring.
more common in the next generation.
environment
Mutation
Migration
Genetic Drift
Gene Flow
List 1 more
common
theme:
Pearson – Mechanisms for Evolution 5 question quiz – Take the quiz, click ‘submit answers for grading’ – and record the
correct answers for all questions. DO NOT email them to your teacher.
1. The evolution of populations due to chance is
2. If color is an inherited trait in beetles, and birds are more likely to eat brown beetles than green beetles,
3. In a population with brown and green alleles for color, genetic drift
4. Color is an inherited trait in beetles. If brown beetles move into a population from a nearby island, which of the following statements is
correct?
5. Which of the following is an example of natural selection?
NESCent – Examples of Evolution - Student Activity – This is designed to help you find examples of evolution in the popular media and your
daily life.
-Choose ONE of the topics from either ‘Applied Evolution’ OR ‘Examples of Evolution’– this is individual, not group.
-Look for recent media coverage of the topic focusing on the role of evolutionary biology. Make sure to include the Bibliography information.
Topic Chosen:_________________________________________________

How does evolution play a role in this issue?

Does this example demonstrate natural selection? YES or NO

If yes, what are the selective pressures?

If no, what is the force driving evolution (Mechanism for Evolution)?

What role do variation and heritability play in this example?

How is this topic relevant in your life?

Bibliography: