It can also take in oxygen through its skin.

它还可以通过皮肤吸收氧气。

They take in oxygen from the water and move it into the bloodstream.

它们从水中吸入氧气并将其输送到血液中。

As these microbes took in oxygen and released carbon dioxide, global levels of O2 dropped even more.

随着这些微生物吸收氧气并释放二氧化碳，全球氧气水平下降得更多。

The respiratory system takes in oxygen from the air and expels carbon dioxide and water vapor.

空气进入口和鼻，穿过喉咙和气管。气管发出左右分支分别进入两肺，之后以超过20次的分支形成大量的肺泡。

As you know, we breathe for the purpose of taking in oxygen and getting rid of carbon dioxide.

如你所知，我们呼吸是为了吸进氧气和清除二氧化碳。

Many mangroves also grow snorkel roots, which can take in oxygen through the same mechanism, or directly produce it via photosynthesis.

许多红树林还长有通气管根，它们可以通过相同的机制吸收氧气，或者直接通过光合作用产生氧气。

This allows the microscopic pores on these roots to take in oxygen during low tide before closing to create a waterproof seal during high tide.

这使得这些根部的微孔在退潮时吸收氧气，然后在涨潮时关闭以形成防水密封。

And their arms play a whole range of roles – from feeding to sensing their environments, taking in oxygen, and housing some of their vital organs.

他们的手臂扮演着各种各样的角色——从进食到感知环境、吸收氧气和容纳一些重要器官。

That log is being decomposed by bacteria, among other things, that take in oxygen, and release CO2. But in the Carboniferous, those wood-eating bacteria didn't exist yet.

该日志正在被细菌分解，除其他外，吸收氧气并释放二氧化碳。但是在石炭纪，那些食木细菌还不存在。

Along with this secondary palate, some late therapsids developed features known as nasal turbinates, which are specialized structures in the nose that help animals take in oxygen more effectively.

除了这种次级上颚， 一些晚期兽孔目动物还发展出了被称为鼻甲骨的特征，这是鼻子中的特殊结构， 可以帮助动物更有效地吸收氧气。