动物的先天性行为是指____就有的，是由身体内部的____所控制的行为．

下列曲线能正确表示人体内酶的催化效率与温度的关系是（    ）

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

    One day, Daisy dreamed a strange dream. She flew in a wonderful carpet to talk with an antelope in Tibet. The antelope told her they were hunted because of their fur which can be used to make sweaters like hers.

Later, she flew to Zimbabwe where she talked with an elephant and got to know the farmers there no longer hunted them. That's because the government decided to help and the farmers finally made a lot of money.

    At last, she arrived at the thick rainforest where a monkey told her “no rain forest, no animals and no drugs.” Although finally everything was gone, she had learned so much.