Gastrointestinal tract跟
Alimentary canal差在哪阿
前面课本写说是
Single elongated tube lined by epithelial cells that associate with digestion wit
h entry and exit ends
后面说是
The organs that food and liquids travel through when they are swallowed, digeste
d, absorbed, and leave the body as feces
阿不就都看起来都在讲消化道
为什么要分成两个写
说vertebrate digestive system consist alimentary canel or gl tract
你版有人知道这两个词差在哪吗
还是只是同样的东西不同说法