Download Homologous Structures Vestigial Structures Co

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Paleontology wikipedia, lookup

Evolutionary history of life wikipedia, lookup

Introduction to evolution wikipedia, lookup

Theistic evolution wikipedia, lookup

Catholic Church and evolution wikipedia, lookup

Acceptance of evolution by religious groups wikipedia, lookup

Hindu views on evolution wikipedia, lookup

Creation and evolution in public education wikipedia, lookup

Genetics and the Origin of Species wikipedia, lookup

Evolution wikipedia, lookup

Hologenome theory of evolution wikipedia, lookup

Unilineal evolution wikipedia, lookup

Sociocultural evolution wikipedia, lookup

Evidence of common descent wikipedia, lookup

Punctuated equilibrium wikipedia, lookup

Coevolution wikipedia, lookup

Adaptation wikipedia, lookup

Evolving digital ecological networks wikipedia, lookup

Transitional fossil wikipedia, lookup

Objections to evolution wikipedia, lookup

Creation and evolution in public education in the United States wikipedia, lookup

Evolutionary mismatch wikipedia, lookup

Transcript
Name: __________________________________
Name the Evolutionary Tactic
Evolutionary
Tactics
Description and
In-Class Examples
Homologous
Structures
• Similar structures in
different organisms that
indicate a common
ancestor
• Ex: Arm bones
Vestigial
Structures
Coevolution
• Structures with no
current purpose that
may have been useful to
an ancestor
• Ex: Whale pelvis, snake
leg bones, human
tailbone
• When two species affect
each other’s evolution
• Ex: Acacia ants and
acacia trees
Examples
1.
2.
1.
2.
1.
2.
3.
Divergent
Evolution
Convergent
Evolution
& Analogous
Structures
Artificial
Selection
Evolution
through
Acquired
Traits
• When different habitats
cause related
populations to become
different.
• Ex: Darwin’s Finches
• When a similar
environment causes
unrelated organisms to
evolve look alike.
• Sometimes tricks people
into thinking certain
organisms are closely
related when they are
not.
• Ex: Shark and dolphin
• When humans
purposely select certain
traits for breeding and
change the evolution of
a species.
• Ex: Dogs, corn
• Posed by Lamarck
• Said that characteristics that
parents picked up during
their lifetimes could be
passed on to offspring
• Ex: Webbed Feet
• DISPROVEN by
Weismann
1.
2.
1.
2.
3.
1.
2.
1.