He said multicellular organisms likely evolved in many places, but the fossils haven't yet been found.
他说多细胞生命可能在多处地点演化，只是其化石尚未被发现而已。
When scientists did find multicellular organisms, they assumed that they'd sunk from oxygen-enriched waters.
而当科学家们确实在深海发现这种多细胞有机生物时，他们曾猜想这些生物是从富氧水域沉降而来的。
Sure enough, cancer is found in almost all multicellular organisms, suggesting its origins stretch back hundreds of millions of years.
毫无疑问，几乎所有的多细胞生物中都发现了癌症，这暗示着癌症的起源可以追溯到数百万年前。
Researchers have found in the deep ocean the first-known kinds of multicellular organisms, dubbed Loricifera, that live completely oxygen-free. Cynthia Graber reports.
研究人员在深海首次发现一种生活在完全无氧环境中的多细胞生物，他们将这种生物命名为Loricifera。
The balance between cell survival and apoptosis is crucial for normal development and homeostasis of multicellular organisms.
细胞存活与凋亡之间的平衡是多细胞生物正常发育与稳态的关键。
That makes up multicellular organisms.
这构成多细胞生物。
That makes up multicellular organisms .
这构成多细胞生物。
The approximately 175,000 species of fungi include some of the simplest multicellular organisms.
包括最简单的多细胞生物在内，真菌大概有175,000种。
From single cells to multicellular organisms, is a leap in the history of evolution, but the timing does not need a long period of time.
由单细胞生物到多细胞生物，是进化史上的一个飞跃，但在时间上并不需要漫长的岁月。
In multicellular organisms, specialized immune cells have evolved, capable of the phagocytosis of foreign cells as well as of self cells changed by infection or cancer.
在多细胞生物中，则演化出具有专一性的免疫细胞，能行吞噬作用吞食外来细胞，及那些因感染或恶性肿瘤而病变的自身细胞。
This course discusses the principles of genetics with application to the study of biological function at the level of molecules, cells, and multicellular organisms, including humans.
本课程讨论了在分子、细胞、多细胞生物层面以及包括人类在内的生物功能的遗传学原理与应用。
This course discusses the principles of genetics with application to the study of biological function at the level of molecules, cells, and multicellular organisms, including humans.
本课程讨论了在分子、细胞、多细胞生物层面以及包括人类在内的生物功能的遗传学原理与应用。
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