Which of these terms refers to the red, green, and brown marine algae growing along seashores?

下面哪个术语指的是生长在海边的红色、绿色和棕色海藻？

Flamingos feed mainly on tiny crustaceans, which in turn feed on red algae.

火烈鸟主要以微小的甲物食，而甲物又以红藻食。

They’re common structures in some red and brown algae.

它们是某红藻和褐藻中的常见结构。

And now, these scientists think they’ve found two species of multicellular red algae in some sedimentary rock from central India that dates back 1.6 billion years.

而现在，这科学家们在来自印度中部的一沉积岩中发现了两种多细胞红藻， 这岩石可以追溯到16亿年前。

But in a paper published this week in the journal PLOS Biology, researchers from the Swedish Museum of Natural History think that they found 1.6 billion year old red algae.

但在本周发表于《公共科学图书馆·生物学》期刊的一篇论文中，瑞典自然历史博物馆的研究人员们发现了16亿年前的红藻化石。

A paper published in 2000 identified one species of red algae from 1.2 billion year old fossils found in arctic Canada, which used to be the oldest eukaryote scientists were pretty sure of.

一篇发表于2000年的论文确了一种来自12亿年前化石的红藻物种，这化石发现于现在的北极加拿大地区，当时被是科学家们非常确定的最古老真核生物。

Because of how big those cells are compared to the cells of other organisms, and some distinct structures inside those cells, they think it’s eukaryotic – specifically, a kind of red algae.

因这细胞与其它生物的细胞相比体积非常大，并且细胞内部有一独特的结构， 们这是真核的——具体来说， 是一种红藻。