Humans, like other animals, have a biological clock that tells us when to sleep and when to eat; Our bodies are controlled by the clock in many ways. /
Humans, like other animals, have a biological clock that tells us when to sleep and when to eat, and our bodies are controlled by the clock in many ways.
“Humans···when to eat”与“ Our bodies···many ways”是两个完整的句子，用逗号连接为串句。
有两种修改方式：
1.将逗号改成分号，使原句变成两个独立完整的句子。
2. 将原句改成一个并列复合句，通过“and”来连接。
句意：人类和其他动物一样，有一个生物钟，告诉我们什么时候睡觉，什么时候吃饭。我们的身体在很多方面都受生物钟控制。
