Malaria is caused by a one-celled parasite called a Plasmodium.

疟疾是由称为疟原虫的一种单细胞寄生虫造成的。

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The one-celled embryos, created at the University of Newcastle, were destroyed within days, as required by law.

在英国纽卡斯尔大学培育出来的这些单细胞胚胎，在数天内就被依法销毁。

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There are five kingdoms: animals, plants, fungi, chromists—including one-celled plants such as diatoms—and protozoa, or one-celled organisms.

归有五个界：动物界、植物界、真菌界、茸鞭生物界——包括单细胞植物，如硅藻——和原生动物界，或单细胞生物体。

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At the time, Venter was trying to accelerate the process of sequencing whole genomes, first one-celled organisms, but ultimately gearing up to take on the decoding of the human genome.

FORBES: Venter and the Vatican

We looked up at the sky, we waited for more news already we were hearing reports that the substance was composed of one-celled organisms and through it all we could sense the swell of our disappointment.

NEWYORKER: The Invasion from Outer Space

The last time I checked with biologists, philosophers and even politicians on both sides of the debates about abortion, stem cell research and cloning, they were pretty certain human individuals were defined by two sets of chromosomes (half from the male, half from the female) which were arranged in the one-celled zygote after fertilization.

FORBES: Biologist Asserts Your Life Began...Before Fertilization.