Transcript Evolution and Adaptation

Evolution and Adaptation Understanding
Evolution: Lessons From Darwin
College of Life and Environmental Sciences
©, College of Life and Environmental Sciences University of Exeter 21.06.2016. This work is
designed to be used at a key stage 4 or equivalent level and is adapted appropriately to show an
example of Higher Education Learning; using appropriate research from the academic
departments of the University of Exeter and is to be used as a teaching and learning resource
and not a published academic article. This work is licensed under the Creative Commons
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Learning Objectives
• Describe the context of how the Theory of
Evolution came to exist
• Identify three main characteristics of the Theory
of Natural Selection
• Investigate in a practical experiment how this
theory adapts the species
• Develop knowledge of research and career
paths into the field of Biosciences
University Style Learning
Lecture: everyone on the course gathers together to
learn about a topic usually an overarching one it is
normally taught from the front and then the group is
set tasks to explore in their seminars.
Seminar: smaller group that looks more closely at
the topic in detail. This topic would be Evolution
so you would explore ideas around this and then
you would be set a task either individually or
within a group. University students would most
likely go off to biology labs, computer research
labs or out in the field to work on their task.
Fieldwork: is when you go off campus to explore the
topic even further and see how the research works in
a real world scenario.
This session is designed to be similar to a
university Seminar in Biosciences. There are
different types of learning methods used in
university.
Bioblitz Nature Event that the
College of Life and
Environmental Sciences run
for nature enthusiasts yearly
on Penryn Campus Credit:
Laura Richardson
Understanding Evolution: Lessons
From Darwin
www.exeter.ac.uk/cornwall
Studying Biology
Understanding the Natural World
Charles Darwin
Alfred Russell Wallace
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Darwin’s Boat
HMS Beagle
Landing Day
Evolution by Natural Selection
1) Not all animals survive to reproduce
Evolution by Natural Selection
2) Within a species, individuals vary
Evolution by Natural Selection
3) Those that reproduce pass characteristics to their offspring
Evolution by
Natural Selection
If a trait allows an
individual to reproduce, it
will be passed on
This will result in
ADAPTATION of
individuals to the
environment
This process is referred to
as ‘Evolution by Natural
Selection’
Evolution by Natural Selection
On The Origin Of Species
Charles Darwin (1859)
Evolutionary Timescales
• An individual animal
does not ‘evolve’ –
evolution happens
over many generations
• In some situations
evolution can be very
rapid
• E.g. artificial selection
in dogs
Now it’s Your Turn! Evolution in Action
‘Predator’ Populations
www.exeter.ac.uk/cornwall
Natural Selection
• Natural Selection results in ADAPTATION of individuals to the
environment.
• Understanding evolution helps us better understand the world around
us.
www.exeter.ac.uk/cornwall
Evolutionary Arms Race
As well as adapting to the environment, species must adapt to catching
prey and avoid becoming prey!
Summary
Evolution happens because:
1.
Not all offspring survive to reproduce
2.
Within a species, individuals vary
3.
Characteristics are passed from generation to generation
www.exeter.ac.uk/cornwall
Summary
Species adapt to their environment and to catch prey/
avoid becoming prey!
We can see evidence for evolution in many places,
including DNA, MRSA and resistance to warfarin in rats.
www.exeter.ac.uk/cornwall
Plenary - Social Media Review
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Find out more about studying
Biosciences at university.
https://www.youtube.com/watch?v=gKAzEVN5eyo
http://www.whatuni.com/degreecourses/search?q=biosciences&pageno=2
http://www.careerpilot.org.uk/info/a-levels/choosing-your-a-levelswhat-you-/
https://nationalcareersservice.direct.gov.uk/advice/planning/jobprofil
es/Pages/biologist.aspx
Lesson by;
Steph Wheeler
College of Life and Environmental Sciences
University of Exeter for Next Steps Cornwall
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