Do Now

What is this a picture(s) of? What are the four different groups? Should Americans feel guilty for what

we have and / or what others do not? Malnourish, Undernourished Over-nourished

Do now:

Owl Pellet lab – Did people finish? I assume not. Write up due by the end of Study Hall (10:00 PM (EST)) Monday night

http://science.hyde.wikispaces.net/AP+Environmental

Objective: TSW examine biospheres / impact of over use of fertilizers

Homework & Objective

Owl Pellet lab – The how to do a lab write up. http://science.hyde.wikispaces.net/AP

+Environmental

Lab stuff

How does the production of Ethanol promote the “Dead Zone in the Gulf of Mexico?

The Gulf suffering from what? Hypoxia What is Hypoxia? Decrease in readily available Oxygen

(Dissolved oxygen)

Review - Chapter 5 (pages 107-132)

Eutrophication

◦Lithosphere – Give an example◦Atmosphere – List several things contained?◦Hydrosphere – Explain◦Biosphere – Explain

Earth’s components:

Producers (aka autotrophs) use energy to for themselves and then as things eat them that energy is converted for that next species to utilize.

Of the total energy (gross) The producer will use it for respiration,.. whatever is left is the net.

The net primary production is now available for the heterotroph to use for consumption.

Energy systems

Gross versus net = biomass available for consumption. What is the difference? Total versus what is actually used

Biomass energy – energy harnessed from plant and animal matter, including wood from trees, charcoal from burned wood and combustible animal waste products such as manure.

Ecosystems vary on the rate that plants can convert to biomass

Energy systems

Freshwater wetlands, tropical forests, coral reefs, and algal beds tend to have the highest net primary productivities versus deserts, tundra, and open ocean tend to have the least.

Explain the chart on page 116. What do you think it represents?

Energy systems