7/29/2019 Food Web Notes

1/7

ProducersPlantsarecalledproducersbecausetheyproducetheirownfood.

Theydothisbyconvertingenergyfromthesun,carbondioxide

fromthetheair,andwater,usuallyfromthesoil,intosugar.Thisprocessiscalledphotosynthesis.

Throughtheprocess

ofphotosynthesis,

oxygenisproduced

andreleasedinto

theatmosphere.We

breathoxygenin

andcarbondioxide

out.Weneedplantstobreathe-to

exist.

CreatedbyJenGallays2013

7/29/2019 Food Web Notes

2/7

GiantCaliforniaredwoodtreesmaybeourbestdefenseagainst

globalclimatechange.

Plantspurifytheair.Itsagood

ideatohavetheminyourhouseandclassroom.NASAhascome

upwithalistofthetopplants

theyrecommendforhomes.

CreatedbyJenGallays2013

7/29/2019 Food Web Notes

3/7

PrimaryConsumersOrganismsthatgettheirenergybyconsumingproducers

(plants)arecalledprimaryconsumers.Wecalltheseorganisms

herbivores.

Outofthe100%oftheenergythatplantsgetthrough

photosynthesis-only10%ofthatenergyispassedontotheprimaryconsumer.

CreatedbyJenGallays2013

7/29/2019 Food Web Notes

4/7

SecondaryConsumersOrganismsthatgettheirenergybyconsumingprimary

consumers(herbivores)arecalledsecondaryconsumers.Wecall

theseorganismscarnivores.

Ourofthe100%oftheenergythatplantsgetthroughphotosynthesis-only10%ofthatenergyispassedonto

theprimaryconsumer.Outofthat10%-only10%ofthat

energyispassedontoasecondaryconsumer.(Basically,

thatmeansthatcarnivoresget1%oftheoriginalplant

energythatwascreatedthroughphotosynthesis.CreatedbyJenGallays2

7/29/2019 Food Web Notes

5/7

PrimaryandSecondaryConsumersOmnivorescanbeconsideredprimaryandsecondaryconsumers.

Theseorganismsconsumebothplantsandanimals.

CreatedbyJenGallays2013

7/29/2019 Food Web Notes

6/7

detr

itivor

eDetritivores

aidindecompositionby

eatingorganic

matterand

returningnutrientstothe

soilmorequickly.

CreatedbyJenGallays2013

7/29/2019 Food Web Notes

7/7

FoodWebEnergymovesthroughafoodweb.Itstartswithplant

photosynthesis.Asorganismseatplants,thereisenergy

transferredfromplanttoorganism.Inthisweb,theenergy

movesfromgrasstograsshoppertomousetosnaketohawk.

Deadanddecayingmatterisconsumedbydecomposersandthe

energyisputbackintothesoiltobeusedbyplantsagain.This

createsanenergycyclethatcontinuesonforever.

Photos taken from Google images. Cartoon diagrams taken from Shepard Software and were created by Jasmine Chapga

CreatedbyJenGallays2