Type-1 is used against bacteria and viruses; type-2 against multicellular parasites such as worms.

类型1用于对抗细菌和病毒；类型2用于对抗细胞寄生虫，如蠕虫。

They're very old, evolutionarily speaking, and likely resemble some of our first multicellular ancestors.

从进化角度来看，它们非常古老，很可能与我们最早细胞祖先相似。

Earth had just managed to evolve multicellular life.

地球上刚出现了细胞生物。

Animals are eaters, movers, sexual reproducers, and multicellular... ers.

它们能吃，能走，能进行有性繁殖，并有细胞。

And they can do it because they're multicellular, which is a rarity in the microbial world.

它们之所以能够做这一点，是因为它们是细胞，这在微生物世界中很少见。

This is the central problem that all multicellular creatures have to solve.

这是所有细胞生物必须解决核心问题。

Early multicellular life depended on the water in which it lived to support their skeleton-less bodies.

早细胞生命依赖于它生活水来支撑它们无骨架身体。

But we humans, along with the rest of the multicellular animal kingdom, are substantially more complex.

但是我们人类和其他细胞动物一样，要复杂得。

Several years ago, Albani and his team discovered it held the oldest fossils know of multicellular animals.

几年前，阿尔巴尼和他研究小组发现这里保存着已知最古老细胞动物化石。

Some people have even suggested that there could be multicellular life, such as fish-like creatures down there.

一些人甚至推测这些寒冷星球上还可能有细胞生命，比如说像鱼一样生物。

Ultimately, it gives rise to a sophisticated system of cooperation that's somewhat like a multicellular organism in itself.

最终形成一个复杂、精致合作系统，有些类似于细胞生物。

The tentacled Archaean uses proteins common to multicellular organisms and might lend insight into how the latter evolved.

这种有触角太古代微生物使用细胞生物共有蛋白质，这可能有助于我们了解后者进化方式。

By 800 million years from now, every green thing on Earth is dried up, and all multicellular life with them.

八亿年后，地球上不会有任何绿色植物，以及任何细胞生物苟活。

At some point, these cells began to form small groups or communities, which lead to multicellular life, and finally, to you.

渐渐，这些细胞开始形成小组或群体，导致了细胞生命，最终形成了你。

Anyway, microbes banded together, creating multicellular life.

总之，微生物结合在一起，创造了细胞生命。

Multicellular organisms are constantly shedding cells.

细胞生物不断地脱落细胞。

It’s the word for how, as multicellular organisms age, they die more, and reproduce less.

这个词是指随着细胞生物衰老，它们死亡得更，繁殖得更少。

In a hot second multicellular organisms become widespread!

在炎热第二年，细胞生物变得普遍！

But recently, scientists discovered what is probably the oldest evidence of multicellular life that isn’t just cell colonies.

但最近， 科学家们发现了可能是细胞生命最古老证据，而不仅仅是细胞集落。

But recently, scientists discovered what is probably the oldest evidence of multicellular life that isn't just cell colonies.

但最近，科学家们发现了可能是最古老细胞生命证据，而不仅仅是细胞集落。