The oxygen crisis that began only two billion years ago prompted the evolution of respiring bacteria. These microbes that used oxygen to derive biochemical energy more efficiently than ever before eventually took over most of the world. Some of the oxygen-breathing bacteria became symbiotic, merging with different (oxygen-eschewing) bacteria to form nucleated cells, which, after becoming sexual, evolved into fungi, plants, and animals.
Lynn MargulisRelated topics
becoming begin billion different evolution form fungus merging oxygen take years biochemical symbioticRelated quotes
May we feel after Thee; still calling out in the darkness, as children waking in the night call "Father," so may we call out for God; and, at times, even if we do not hear Thy voice, may there be the form of a hand resting upon us, and that shall be enough; for we shall take hold of it, though it be in the dark, and it shall guide us to the growing light; for the day shall come, and the release and triumph.
Henry Ward Beecher
I have added some ploughmen to the landscape form the park pales which is a great help, but I must try and warm the picture a little more if I can... but I look to do a great deal better in future. I am determined to finish a small picture in the spot for every one I intend to make in future. But this I have always talked about but never yet done – I think however my mind is more settled and determined than ever on this point.
John Constable
Consider the Koran... this wretched book was sufficient to start a world-religion, to satisfy the metaphysical need of countless millions for twelve hundred years, to become the basis of their morality and of a remarkable contempt for death, and also to inspire them to bloody wars and the most extensive conquests. In this book we find the saddest and poorest form of theism. Much may be lost in translation, but I have not been able to discover in it one single idea of value.
Arthur Schopenhauer
I hope through The L Word to become an honorary member of the gay tribe. I cherish the thought that some young girl or woman somewhere may one night turn on the television and for the first time ever see her life represented -- not as an isolated incident but as a multiplicity. Her overwhelming fear may have been that she might never find her tribe, she might never find love and now she knows that they are both out there waiting for her.
Jennifer Beals
I originated a remark many years ago that I think has been copied more than any little thing that I've every said, and I used it in the FOLLIES of 1922. I said America has a unique record. We never lost a war and we never won a conference in our lives. I believe that we could without any degree of egotism, single-handed lick any nation in the world. But we can't confer with Costa Rica and come home with our shirts on.
Will Rogers