Afoodchainisasimplewayofexplaininghoweachlivingthingget...
問題詳情：Afoodchainisasimplewayofexplaininghoweachlivingthinggetsitsexample,asimpleAfricanfoodchainmightconsistofthreeparts:（1）treesandbushes;（2）giraffes;and（3）linkinafoodchainisfoodforthenextchainsalwayssta...