Illan ti ihandagan n tropic izlaynen daɣ web n achakchaw fuk , s edag wan gachulan eqqal wan primary producers ( meɣ autotrophs) chund ihishkan d algae tan s imutinen enerji d isuj win inorganic s win organic addobat nen at wa axdam daɣ awa eqqiman daɣ tawset