下列关于一株水蜜桃和一头牛的叙述，不正确的是

题干

下列关于一株水蜜桃和一头牛的叙述，不正确的是（　　）

A：它们的发育起点都是受精卵

B：水蜜桃的果实、牛的心脏都属于器官

C：细胞是它们的结构和功能单位

D：结构层次都是细胞→组织→器官→系统

上一题下一题 0.0难度选择题更新时间:2017-01-09 06:45:42

D

Subject	How can we have a colorful summer vacation?
Place & Time	Class 1 Grade8, at 10:00 am on ____
Ideas from Students
Zhao Pei: I want to make myself stronger, so I'd like to ____more exercise. Liu Yue: I prefer to take a vacation ____ my parents in Hainan. Being together with families is my way to show love to them. Zhang Li: I have made a plan to read some books I like. Reading can help me get lots of knowledge. When I grow ____I want to be a writer. Chen Tao: I'll do more chores. My parents do almost everything for me, but I don't want to depend on them too much. I hope to____after myself.