Mary Allen
Yawancin abubuwa masu rai suna cin sauran abubuwa masu rai kuma ana cinye su da kansu. Ana kiran wannan sarkar abinci. Misali, akwai kananan kaguwa masu cin algae. Kifi na cin kananan kaguwa, jawa suna cin kifin, kyarkeci kuma suna cin kaji. Duk yana rataye tare kamar lu'ulu'u akan sarka. Shi ya sa ake kuma kiransa sarkar abinci.
Sarkar abinci kalma ce daga ilmin halitta. Wannan shine ilimin rayuwa. Duk mai rai yana buƙatar kuzari da tubalan ginin rayuwa. Tsire-tsire suna samun wannan makamashi daga hasken rana. Suna samun tubalan ginin don girma daga ƙasa ta tushensu.
Dabbobi ba za su iya yin hakan ba. Don haka, suna samun kuzarin su daga sauran halittu, wanda suke ci kuma suke narkewa. Wannan na iya zama tsire-tsire ko wasu dabbobi. Don haka tsarin abinci yana nufin: makamashi da tubalan gini suna tafiya daga wannan nau'in zuwa wani.
Wannan sarkar ba koyaushe take ci gaba ba. Wani lokaci jinsin yana a kasan sarkar abinci. Misali, mutum yana cin kowane irin dabba da tsiro. Amma babu dabba da ke cin mutane. Bugu da kari, a yanzu mutane na iya amfani da makamai don kare kansu daga harin dabbobi.
Me ke faruwa a ƙarshen sarkar abinci?
Duk da haka, gaskiyar cewa mutane suna a ƙarshen sarkar abinci kuma yana haifar da matsala a gare su: shuka zai iya sha guba, misali, ƙarfe mai nauyi kamar mercury. Karamin kifi yana cin shuka. Babban kifi yana cin ƙananan kifi. Karfe mai nauyi koyaushe yana tare da ku. A ƙarshe, wani mutum ya kama manyan kifi sannan ya cinye duk wani nauyi da aka tara a cikin kifin. Don haka zai iya guba kan kansa na tsawon lokaci.
Ainihin, sarkar abinci ba ta da iyaka ko kaɗan, domin mutane ma suna mutuwa. Bayan mutuwarsu, ana binne su a ƙasa. A can ne kananan dabbobi kamar tsutsotsi suke cinye su. Sarkar abinci a zahiri suna yin da'ira.
Me yasa ra'ayin sarkar bai dace ba?
Yawancin tsire-tsire ko dabbobi ba kawai suna cin wani nau'in ba ne kawai. Wasu ma ana kiransu omnivores: suna cin dabbobi daban-daban, amma kuma tsire-tsire. Misali shi ne beraye. Akasin haka, ciyawa, alal misali, nau'in dabba ɗaya ne kawai ba ya cin abinci. Mutum zai yi magana aƙalla sarƙoƙi da yawa.
Wani lokaci, saboda haka, mutum yana tunanin duk dabbobi da tsire-tsire da suke rayuwa a cikin wani daji, a cikin teku, ko a cikin dukan duniya. Wannan kuma ana kiransa tsarin muhalli. Mutum yakan yi magana akan gidan yanar gizon abinci. Tsire-tsire da dabbobi kulli ne a cikin gidan yanar gizo. Ana haɗa su da juna ta hanyar ci da ci.
Wani hoto kuma shine dala na abinci: Mutum, an ce, yana saman dala na abinci. A kasa, akwai tsire-tsire da ƙananan dabbobi masu yawa, kuma a tsakiya akwai manyan dabbobi. Dala yana da fadi a kasa kuma yana kunkuntar a sama. Don haka a ƙasa akwai masu rai da yawa. Da zarar ka kai saman, ƙananan akwai.