Download - 4/22/14 WARM UP
4/22/14 WARM UP1. Grab Folders
2. Pull out notes from yesterday (HUMAN IMPACT NOTES)
3. Answer question on that paper:
What must often be added to increase the speed or ability of two substances to react?a. A bigger containerb. Adding heatc. More substancesd. Adding water
• Which of these is an example of energy involved in a chemical change/.a. Dropping a rockb. Heating a burner on stove topc. Freezing an ice cubed. Burning a candle
5. Suburban Sprawl & Deer
• What is it: When people build communities right on the
edge of a natural habitat for a species – then many species will start to come into the developed land
• Issue:• What to do?
• http://ur.umich.edu/9596/May07_96/artcl18.htm, http://www.rpaforall.org/RPA%20Factsheet%205.pdf
MON TUES WEDS THURS FRI SAT SUN
21 22 23 24 25 26 27
28 29REVIEW FOR TEST
30ECOLOGYTEST
1 2ChemistryReview
3 4
5PhysicsReview
6GeologyReview
7Ecology Review
8SAGETEST
9SAGE TEST
10 11
12 13 14PROJECTSDUE
15 16 17 18
19 20 21LAST DAY FOR ASSIGN
22 23LAST DAY OF SCHOOL
24 25
Biodiversity, Extinction & Exotic Species
SWOD: Natural Selection
Biodiversity• The number of different species in an area • Biodiversity = a variety of animals and life
• http://fc01.deviantart.net/fs30/i/2008/077/b/8/Diversity_of_Species___Brushes_by_scumbugg.jpg
The value of biodiversity
• 2 ways:• 1. economic value– Foods, resources, commodities- Medicines
• 2. ecological value– Food webs
• http://www.biologycorner.com/resources/foodweb1.gif
Concerns with Biodiversity
• Decline in habitatExtinction/endangered species
(extinction = organism is completely gone(endangered = very few species left and could possibly become extinct)Causes: watch video and write down all the
causes of extinction.
Extinction CausesCauses:1. Habitat destruction (primary cause)2. Poaching3. Pollution4. Exotic species discuss later in class
Thylacine
http://www.fxdirectory.info/wp-content/uploads/2011/03/Baiji-dolphin-is-endangered-habitat.jpg• http://en.wikipedia.org/wiki/File:Pteropus_conspicillatus.jpg• http://www.dodo.blog.br/wp-content/uploads/2007/08/ferahgo.jpg
Exotic/Introduced/Invasive species
• Advantages: • Pollination• Food– Butterflies feeding on non-native plants
• Reforestation– Exotic trees restore forest to help bring back
native species• Endangered
Examples of Exotic Species that were harmful
• Zebra Mussel• Kudzu• Nutria Rat• River Monster & Piranas
Zebra Mussels
Disadvantages
• 1. Kudzu: prevent soil erosion• Kudzu video
Nutria Rat
Disadvantages of Exotic Species
• In your tables, come up with a list of 4 disadvantages that come with introducing an exotic species.
• Think of 2 other exotic species we did not discuss in class