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Abiotic, and biotic factors

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` De fine abiotic and biotic

` Ide ntify diff e r e nt abiotic and biotic factors thumbs

up/down

` Analyz e the diff e r e nc e s b e twee n abiotic and bioticfactors (list, sort, lab e l)

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C ompon e nts of an e cosyst e m involv e inte ractingabiotic and biotic factors.

` Abiotic = Non-living` Biotic = Living

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Abiotic factors- non-living, physical or ch e micalfactors that aff e ct th e ability of organisms to liv e and r e produc e

Ex ampl e s Includ e: Inte nsity of light Rang e of temperature amount of moisture (water) pH of e nvironm e nt S upply of gases O 2, C O 2, N 2 Availabl e space

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` Biotic factors- th e living things that dir e ctly, or indir e ctly, aff e ct th e e nvironm e nt.

` The pr e s e nc e , parts, int e raction, and wast e s of an

organism all act as biotic factors` Biotic compon e nts includ e:

P roduc e rs (autotrophs)C onsum e rs (h e te rotrophs)De

compose

rs (saprophyte

)

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` P roduc e rs (autotrophs)-organisms that mak e the ir ownfood by photosynth e sis.

` Form th e basis of any bioticsyst e m

` Ex ampl e s : plants and alga e

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C onsum e rs (h e te rotrophs)-organisms that e at plants or oth e r animalsa) He rbivor e s- e at plants. Ex / d ee r,

rabbitsb) C arnivor e s- e at oth e r animals.

1. P r e dators- chas e , catch, kill ande at th e ir own pr e y. Ex / lions,sharks, wolv e s

2. S cav e ng e rs- e at r e mains of animals th e y did not kill. Ex /vultur e s, hy e nas, crows, crabs

c) Omnivor e s- e ats both plants andanimals. Ex / b e ars, humans

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` De compos e rs (saprophyt e s)-br e ak down d e ad organismsand mak e the ir compon e nts

availabl e to oth e r living things` Re turn nutri e nts to th e soil` Ex ampl e s includ e: bact e ria of

de cay, fungi, br e ad mold

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` M ine rals in soil` Oak tr ee` M ushrooms` Ground wat e r ` Sq uirr e l` Ox yge n and carbon dio x ide` M ountain lion