Download EV1- Guided Exploration

Guided Exploration- (EV1)Learning Goal One: Evaluate the implications of natural selection.
Part One:
Go to Ms. Franzen’s Website (https://elin-franzen.diplomaplus.net/index/837300) and, under Biology One- Student
Resources under BiologyI_Unit3_Evolution find the PowerPoint- History of Evolutionary Theory- Natural Selection
Use the PowerPoint to answer the following questions/ fill in the blanks:
EARLY IDEAS ON EARTH’S ORGANISMS:
What did Aristotle believe about Earth’s species?
How long did his ideas last? __________________
What did Linnaeus contribute to the way we think about species?
What is Binomial nomenclature?
What was Lamark one of the first scientists to understand?
What is the Use and Disuse Law suggest?
Changes are adaptations to the environment __________________________________________________________
Could these traits, developed during an organism’s lifetime, be passed on to their offspring? ______________
Give at least two examples of the Use and Disuse Law:
Give at least one example of the inheritance of acquired traits:
What do we know now that would disprove Lamark’s Law of Use and Disuse?
Phenotype:
Genotype:
Phenotype _______ _______________ during life, but this will never change ___________________, so these traits are
__________ inheritable.
CHARLES DARWIN is the ______________________ of Evolutionary Theory.
What question was he trying to solve?
What did Darwin notice about Finches on the Galapagos Islands?
________________ types of finches appeared on the islands where the available food was _______________________.
Finches had ____________________________ types of beaks adapted to their _________________________________
DARWIN’S OBSERVATIONS AND CONCLUSIONS
1. Resources are limited.
a. How did he know?
CONCLUSION: ______________________________________- Production of more individuals than can be
supported by the environment leads to a struggle for existence among individuals.
2. No two individuals in a population are exactly alike.
a. Much of this variation between individuals is ______________________________.
CONCLUSION: ______________________________________- Individuals who inherit characteristics most fit for
their environment are more likely to leave more offspring than less fit individuals.
Darwin’s Theory of Evolution:
THE ________________________ ABILITY OF INDIVIDUALS TO _______________________ AND ___________________
LEADS TO A GRADUAL CHANGE IN THE POPULATION, WITH FAVORABLE TRAITS ACCUMULATING OVER GENERATIONS
(___________________________ ____________________________)  NEW SPECIES EVOLVE.
Evolutions is when a ______________________________ of organisms_______________________________________.
Artificial Selection:
Natural Selection is the way that ___________________________________________________.
Natural selection is when nature selects:
a. Organisms with ___________ ____________ to live and pass on their genes and…
b. Organisms with bad genes to die out.
Fitness: _____________ ___________________ and _______________________ that enable organisms to survive and
reproduce in their environment.
Common Descent: the idea that all species have _____________________ _______________________.
Review of Darwin’s Theory of Natural Selection:
Darwin’s Theory of Natural Selection
1. Individual Organisms In Nature Differ From One Another. Some Of This Variation Is Inherited
2. Organisms In Nature Produce More Offspring Than Can Survive, And Many Of These Offspring Do No Reproduce
3. Because More Organisms Are Produced Than Can Survive, Members Of Each Species Must Compete For Limited
Resources
4. Because Each Organism Is Unique, Each Has Different Advantages & Disadvantages In The Struggle For Existence
5. Individuals Best Suited To Their Environment Survive & Reproduce Successfully – Passing Their Traits To Their
Offspring.
6. Species Change Over Time. Over Long Periods, Natural Selection Causes Changes That May Eventually Lead To
New Species
7. Species Alive Today Have Descended With Modifications From Species That Lived In The Past
8. All Organisms On Earth Are United Into A Single Tree Of Life By Common Descent
YOU ARE DARWIN. EXPLAIN WHY AND HOW THIS CHANGE COULD HAPPEN:
These two finches came from the same ancestor.

According to Darwin, how did they come to look
different?

What would Lamarck had said?
Part Two:
In class: Get a Pepper Moths of London Packet and complete the worksheet and activity.
Online: Go to Ms. Franzen’s Website (https://elin-franzen.diplomaplus.net/index/837300) and, under Biology OneStudent Resources under BiologyI_Unit3_Evolution find the Activity- Pepper Moths of London. Print out and complete
the worksheet and activity.
Part Three:
Bringing it all together:
Go to the following website (individual or as a class): http://www.sciencenetlinks.com/interactives/evolution.html
What is happening to the bugs? Why? What is this called?
FANTASTIC!!!!
Take a minute to review everything that you have learned during this learning goal exploration and then….
GO GET THE EV1 QUIZ FROM MS. FRANZEN AND PROVE THAT YOU KNOW YOUR STUFF!!!