下列各项中属于生物的是
A．电动狗
B．恐龙蛋化石
C．海葵
D．珊瑚的骨骼
答案：C
分析：此题考查的知识点是区分生物与非生物．区分生物与非生物关键是看有无生命现象．
解答：解：生物具有区别非生物的基本特征是：由细胞构成（除病毒以外）、生活需要营养、能进行呼吸、能排出身体内产生的废物、能对外界刺激作出反应、能生长和繁殖、有遗传和变异的特性，等等．A,B,D都不属于生物。
故选：C
点评：生物的特征是区别生物与非生物的依据．
Eric was standing in front of a large, gray house in the countryside. He had just been dropped off by his mum, who left after telling him that he was going to the next twelve days there with no TV, no mobile phone and worst of all—no . Just then, a man appeared* at the gate of the house. When he saw Eric, he went up to him immediately*. "I'm you are Eric. Welcome to Camp Reboot," said the man proudly. "I'm Tony, the camp leader*, but you will me 'Sir'. Now you tell me you're here." Eric quickly replied, "My mum made me here!" When Tony looked angrily him and did not say , Eric realized his mistake and added, "Sir!" "And do you know why your mother sent here? Asked Tony. "She thinks I spend too much time online—that I can't live without the Internet... Sir," answered Eric. "It's not just her opinion. It's the ! Look at you—tired, unhealthy and certainly not getting sleep. You're here because you think your world on the Internet is much than the real world. But you're wrong! The real world has much more to offer. At Camp Reboot, you're going to go hiking, boating, rock-climbing and stay outdoors most of the ," said Tony. Eric's heart broke. "But it's not going be all fun and games." Tony continued. " We have rules here. you break them, you'll never be sent home ! Instead, you'll have to sweep the floor, wash the dishes or do an extra hour of exercise!" "Oh, my God!" cried Eric. "What have you got me into, Mum?"
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