Transcript File
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)