请教英语长难句翻译Biological diversity is the sum of all those organi
请教英语长难句翻译
Biological diversity is the sum of all those organisms that are present in an ecosystem,
that dictate how ecosystems function, and that underpin the life-support system of our
planet.
请问这句中的三个that是并列的吗,
我的翻译:生物多样性是指存在于一个生态系统中的、以及指示生态系统的运作方式的,和维持地球生命系统的所有有机体的总和.
感觉怪怪的,请高手指导,谢谢啦