Imeẓlečči (Assaɣ ussnan: Heterotroph) d amuddir ur nezmir ara ad yesbad akaṛbun| seg yiɣbula iragmanen (am CO²) maca yessemras uddisen igamanen i wakken ad yegmu.

Aɣawas amatu i wallus gar n yimanmeččiyen yimeẓleččiyen.

Imuddiren-a bṭan s unect n wamek i d-ttawin tafasa-nsen, anda i ttwabḍayen ɣer yimuddiren ifmeẓleččiyen d ukermeẓleččiyen.

Imuddiren imeẓleččiyen gan d imuddiren ur d-netfaras ara učči-nsen s yiman-nsen yerna tteklen ɣef wiyyaḍ i wakken ad gren učči-nsen am tenga tagmant igebren s talɣa tagejdant seg yimuddiren iɣersawen.

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