Interdependence
BTEC
Scenario:
You are working for a conservation
group, and have been asked to
prepare a leaflet for local industry
describing how organisms are
adapted to their habitat, and the
sensitive interdependency of species
within the habitat.
You will need to hand in a leaflet
for this assignment.
Food chains and food webs
• Give two or three examples of food chains
• Explain the words: producer, consumer,
primary consumer, secondary consumer,
herbivore, carnivore, omnivore
• Try BBC Bitesize – food chains
• Do not copy the food chain from the web site
• Read through the pages
• Do the test bite
parasite and host
•
•
•
•
Explain what the words mean
Give two or three examples
Try
http://wonderwise.unl.edu/12parasi/kidactivi
ty/index2.htm
• For examples
predator and prey
•
•
•
•
•
•
•
•
Explain what the words mean
Give two – three examples
Try
http://idahoptv.org/dialogue4kids/season4/prey/facts.
cfm
Display a predator/prey graph and explain why it look
like that
try
http://algebralab.com/practice/practice.aspx?file=Read
ing_PredatorPrey.xml
Do the answers to the questions under the graph
Darwin’s finches
• Find out and explain how Darwin used the
different types of beak of species of finches to
explain how evolution can change animals
• Try
• http://www.bbc.co.uk/schools/gcsebitesize/sc
ience/edexcel_pre_2011/environment/evoluti
onrev3.shtml
Natural Selection
• Find out about the
peppered moth
• Explain how the
peppered moth is an
example of natural
selection in action
• http://www.bbc.co.uk/sch
ools/gcsebitesize/science/
21c/life_on_earth/theory_
evolutionrev7.shtml
• Try
• http://science.discovery.c
om/interactives/literacy/
darwin/darwin.html
• Play the survival game
MRSA
• Find out about how each generation has lots of
organisms that die before they reproduce.
• The ones that live have features that help them
survive.
• MRSA is a bacteria that now has a special feature that
helps it survive antibiotics
• Explain this in your own words
• http://www.bbc.co.uk/schools/gcsebitesize/science/21
c/life_on_earth/theory_evolutionrev7.shtml
• Or
• http://en.wikipedia.org/wiki/Antibiotic_resistance
• But scroll down until you find the diagram and
explanation on the right hand side
Task 1 – produce a leaflet
• (describe the interdependence and adaptation
of organisms)
• Research a specific habitat, and describe how
organisms within the habitat are adapted for
survival there.
e.g. a pond
Draw a simple food web
• Choose 2 or 3 of the organisms and explain
how they are adapted to live in the pond
• Try
• http://www.britishecologicalsociety.org/docu
ments/education/adaptations_ponds.pdf
• But use your own words and pictures
Then, using words and food chains,
describe how the organisms present
are interdependent. (P3)
• That means pick out some food chains from
the food web and show they are
predator/prey and need food to live
• Also how plants provide the oxygen
• Etc.
• ALL STILL IN THE LEAFLET – IN YOUR OWN
WORDS
Task 2
• (describe how variation within a species brings
about evolutionary change)
• Still in your leaflet
• Using the different species of finch studied by
Charles Darwin as an example, describe how
variation within a species can lead to
evolutionary change. (M1)
Task 3
• (explain how organisms within an ecosystem
interact over time)
• Choose a predator/prey relationship from
your selected habitat and explain how the
species population of each may change over
time. (M2)