求翻译：首先，人们认为人类的基因上有差异。所以导致了人种优劣和种族歧视。但是有研究表明人类拥有共同的祖先。外表的差异只是人们适应环境造成的。是什么意思？

First of all, people think there are differences in the human gene. Thus resulting in the superiority of the races and racial discrimination. But studies have shown that humans have a common ancestor. Differences in the appearance of the only people to adapt to the environment caused by

First of all, it is believed that human genetic variations. As a result, the ethnic and racial discrimination and disadvantages. But studies show that human beings have a common ancestor. The difference is only apparent to adapt to the environment.

First, the people thought in humanity's gene has the difference.Therefore has caused the race fit and unfit quality and the racial discrimination.But has the research to indicate the humanity has the common ancestor.The semblance difference only is the people adapts to the circumstances to create.

First of all, it's thought on human genes differ. So pros and cons led to ethnic and racial discrimination. However, research has shown that humans share a common ancestor. Differences in appearance only people adapt to the environment.

first of all, it is believed that human genetic variations. As a result, the ethnic and racial discrimination and disadvantages. But studies show that human beings have a common ancestor. The difference is only apparent to adapt to the environment. ;