molecule

By burning fossil fuels like oil, coal and natural gas for transportation, agriculture, manufacturing and other commercial activities, humans add a molecule to the atmosphere that traps heat and unnaturally warms the planet.

Prof Manga added that water was "the most important molecule in shaping the evolution of a planet".

It does this by holding tightly to RNA, the single-stranded molecule that turns the genetic information encoded in DNA into proteins.

Prof Manga added that water was "the most important molecule in shaping the evolution of a planet".

In the absence of BMP, the signalling molecule beta-catenin takes on the role of the Nodal antagonist.