下列关于植物组织培养的叙述中，错误的是（　　）

如图表示人的受精及胚胎发育过程，请据图回答．

    The Noodle House has really good noodles. They are cheap, and they are great! You can get small, medium, or large bowls of noodles.

    The Noodle House has some specials. Special 1 has beef and tomato and is only ￥5. Special 2 has mutton and cabbage. It is ￥6. And Special 3 has chicken and carrot. It's only ￥8. I like it best.

    You can get some other great food at the Noodle House. For example, you can get 16 dumplings for ￥11. You can get great desserts! You can get strawberry, banana and orange ice cream.

    They are all nice! Try the Noodle House soon!

多细胞生物体的结构层次表示为下面图解，在  中填上恰当词语；

____    ____    ____

可以看出，山羊和青草的结构层次不同，山羊有____而青草没有．