在关于人的身心发展研究中，当代生物学家威尔逊把“基因复制”看作是决定人的一切行为的本质力量；中国民间则有“龙生龙，凤生凤，老鼠的儿子会打洞”一说，当代遗传学的发展也为人们重新认识这一观点提供了某些方面的证据。

请问：

(1)什么是遗传素质?如何认识遗传素质对人的发展的作用?

(2)除了遗传素质，分析小学生在性别、智力及非智力因素的差异。

Many students agreed to come, but some students against because they said they don't have time.

A．were against because they said they did not

B．were against because they say they don't

C．were against it because they said they did not

D．were against coming because they said they don't