下图是中国人民抗日战争暨世界反法西斯战争胜利70周年纪念活动的标识，请写出其构图要素，并说明其寓意，要求语言简明，句子通顺，不超过150个字。

根据短文理解，选择正确答案填空。 

    Jim is a junior high school student. He gets up 16:30 every morning. His home is near his school. He 2home after breakfast. He goes to school on foot. This is good for his 3. He has four lessons in the morning. He has lunch at home. After lunch he goes to school again. In the afternoon, Jim has lessons . He likes English and PE lessons. He has PE lessons on Tuesday and Friday. He is good at4football and basketball. He is also good at the high jump. His PE teacher likes5 very much. He often plays football with his classmates after school.

孟德尔遗传规律不适合于原核生物是因为原核生物 (    )