vargas island, summer, 2010

Thursday, October 4, 2012

Section 2.1, Energy in Ecosystems

Summary: Today we studied

  •  the 4 trophic levels in an ecosystem:  the producer, primary consumer, secondary consumer, tertiary consumer
  • the different kinds of consumers in an ecosystem, including: herbivore, omnivore, carnivore, detrivore, decomposer.  
  • a food pyramid of biomass, and explored how abiotic factors may change the pyramid shape.


Homework: Read the text 2.1 and

  • make a list of vocabulary words (in bold) and their meanings.  
  • Do practice questions from section 2.1 in the   BC provincial exam study guide for biology unit.  do the fill in the blanks and the multiple choice questions.  The answer key is at the end of the document so check your work.  

Tuesday, October 2, 2012

Summary of our Carbon lesson


This is a summary of our notes today (below).  You can see that glucose production and consumption are driving forces for many of our adaptations.  You eat, breathe, and get rid of waste to serve some basic biochemistry going on inside your cells.

CARBON IN AN ECOSYTEM

CARBON HAS 3 IMPORTANT ROLES IN AN ECOSYSTEM

1.     CARBON IS A BUILDING BLOCK for all life
2.    CARBON IS USED AS FUEL FOR ENERGY
3.    CARBON IS RECYCLED WITHIN THE ECOSYSTEM AND ON EARTH