Food
Webs:
Showing
energy
transfer
among
organisms
(biosphere!)
http://images.tutorvista.com/content/ecosystem/food-web-terrestrial-aquatic-ecosystem.jpeg
Organisms & Energy:
• Required
for life
processes
• Sources:
Sun &
other
organisms
http://www.citruscollege.edu/lc/archive/biology/PublishingImages/c05_02.jpg
Law of Conservation of Matter:
• Matter is
neither
created nor
destroyed,
only
transformed
from one
form to
another
http://chemistry4gcms2011.wikispaces.com/file/view/Screen_shot_2011-02-14_at_7.26.42_PM.png/201768720/Screen_shot_2011-02-14_at_7.26.42_PM.png
Law of Conservation of Energy:
(1st Law of Thermodynamics)
• Energy is neither created nor destroyed,
only transformed from one form to another
http://www.swiftutors.com/science/images/conservation-of-energy.png
2nd Law of Thermodynamics:
• When energy is changed from one form to
another, some of it is lost to the
surrounding environment.
• Energy transfer is not 100% efficient.
http://images.tutorvista.com/content/ecosystem/progressive-energy-loss.jpeg
http://blog.thegreenplate.org/wp-content/uploads/2010/09/SoilNG.jpg
http://www.sheppardsoftware.com/content/animals/kidscorner/images/foodchain/fullchain.gif
Food Web Requirements:
•
•
•
•
•
•
•
Original energy source (SUN!)
Producers
Consumers
Decomposers
Soil (or water for aquatic)
Arrows – showing energy flow
Layered by trophic level
http://bio1151.nicerweb.com/Locked/media/ch31/31_18cShelfFungi-L.jpg
http://www.vtaide.com/png/foodweb/desert-sm.jpg
http://idahoptv.org/dialogue4kids/images/season11/food_chain/plant.gif
http://www.bostonbakesforbreastcancer.org/wp-content/uploads/2012/03/sun.jpg
http://www.wired.com/images_blogs/wiredscience/images/2007/12/20/prettycow_2.jpg