细胞______形成不同的组织，植物根、茎、叶内的导管和筛管属于______组织，人的血液属于______组织．
细胞分化的结果是形成了不同的组织！
植物体由许多组织：保护组织、分生组织、输导组织、营养组织、机械组织等；人体一般有四种组织：肌肉组织、结缔组织、神经组织、上皮组织．植物根、茎、叶内的导管和筛管属于 疏导组织，人的血液属于 结缔组织．
故答案为：分化；输导；结缔．
| 补全对话。 从方框中选择最佳选项完成对话，有两项多余。 | |
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| A: Hi, Tony! Thank you for inviting me to your party last night. 1 But this morning I got of late． B: 2 A: Because I enjoyed myself at your home. We sang and danced happily. We talked and laughed. When I got home, ____3___ B: Oh. But I was too tired. I went to sleep as soon as you left., A: By the way, ___4____ B: It was country music. A: It was really great. But I prefer the music that I can dance to. B: I prefer the groups that play quiet and gentle songs. ____5___ A: I prefer the groups that wear really cool clothes. |