Env. Answer of the Week 06_11

Pennsylvania Center For Environmental Education

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Question of the Week

Energy for most ecosystems comes from the sun; there must be a flow of energy for an ecosystem to work.
Some of the energy that starts with the sun moves through photosynthetic organisms (including green plants and algae) to herbivores, carnivores and decomposers.

http://regentsprep.org/Regents/biology/units/ecology/energy.cfm

An energy pyramid describes the feeding and energy relationships within a food chain or web. Each step of an energy pyramid shows that some energy is stored in newly made structures of the organism that eats the preceding one.

Explain the flows of energy from organisms to organisms within an ecosystem by checking whether these statements are true or false:

When organisms eat or make their own food from the sun, they gain energy.

When looking at the feeding pyramid above, the top consumers gain the least amount of energy from what they eat.

The sun is the main source of energy for an ecosystem where plants use the sun to make their own food.

Energy does not affect what types of plants and animals can live in a particular ecosystem.

Congratulations for Submitting the Correct Answer!
Name	County
Eric Atkins
Shane Billbrough	Delaware
Josh Breen	Delaware
Billy Caulfield	Delaware
Elias Delatorre	Berks
Gina Diluzio	Delaware
Francine Dorwart	Delaware
Theresa Fieo	Delaware
Kendall Glynn	Delaware
Steven T. Graham Jr.	Delaware
Brennen Harding	Lancaster
Dean Hartley	Delaware
Sabrina Kenny	Delaware
Alison Killian	Delaware
Amanda Jennings	Delaware
Kim Johnston	Delaware
Richard Knight	Butler
Judy Lefkowitz	Delaware
Christopher Long	Delaware
Steph Martin	Mercer
Sean McCarthy	Delaware
Merissa Molineux	Delaware
Brittany Moyer	Delaware
Ryan Mulholland	Delaware
Steve Plunkett	Delaware
Dana Quairoli	Delaware
Jake Reilly	Delaware
Jacqueline Ricks	Delaware
Eric Santos	Berks
Beth Sheckler	Carbon
Dustin Snell	Delaware
Gina Staub	Butler
Sean Stull	Berks
Burnce Carnevale Vince	Delaware
Eddie Wasekanes	Delaware
Mark Whitham	Delaware

http://faculty.abe.ufl.edu/~chyn/age2062/lect/lect_28/40_07.GIF

Stuck?

try these links

Food Chains and Food Webs

Food Chains

Flow of Energy

Energy Flow

Pennsylvania Environment and Ecology Standard

4.6 Ecosystems and their Interactions

Activities:

Circle of Life

Chain Reaction

http://www.anselm.edu/homepage/jpitocch/genbios/53-10-FoodChains-L.jpg

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