Peter plays basketball for the kids basketball club. He usually gets up at 5:30 and runs in his school from 5:40 to 6:40.After running, he has breakfast at 7 o'clock. For breakfast, he eats some eggs and vegetables. At 8:00,he plays basketball with his friends. They play for a long time. At about 12:00,they have lunch. For lunch, Peter has lots of vegetables, chicken and fruit. At 3 o'clock in the afternoon, Peter goes to the kids basketball club. Peter has dinner at about 7:00 in the evening. After dinner, he watches basketball games on TV. Peter usually goes to bed at 9:30.

下面是猫和鼠的部分生命现象，请分析说明它们各属于生物的何种基本特征．

根据提示写单词。

下列食物中既可预防夜盲症，又可预防佝偻病的是（　　）

量取液体时用的仪器是____，读数时视线要与____，读出液体体积。