ca'm nang tu 6n vi luygn ihi Sinh hpc - Phung Duy DdngVi du: 6 ngirdi, dong vat c6 vu, ruoi giam, mot so thifc vat (gai, chuaMetionin, ...) thi gidi cai gom 2 chiec tifcfng dong, gidi dye thi khong tu'Ong ddng.Trai lai d cic loai, chim, ech, nhai, bo sat, bufdm, dau tay,... thi ngil'dc lai. O cacloa[r]