The Present
Oxygenic photosynthesis accounts for virtually all of the production of organic matter from non-organic ingredients. Production is split about evenly between land and marine plants, and phytoplankton are the dominant marine producers.
The processes that have driven evolution are still operating. Well-known examples include the changes in coloration of the peppered moth over the last 200 years and the more recent appearance of pathogens that are resistant to antibiotics. There is even evidence that humans are still evolving, and possibly at an accelerating rate over the last 40,000 years.
Read more about this topic: Evolutionary History Of Life
Famous quotes containing the word present:
“No people can more exactly interpret the inmost meaning of the present situation in Ireland than the American Negro. The scheme is simple. You knock a man down and then have him arrested for assault. You kill a man and then hang the corpse.”
—W.E.B. (William Edward Burghardt)
“There is a Restlessness springing from the consciousness of power not fully utilized, which must be present wherever there is unused power of whatever kind. This is the restlessness of the germ within the seed, struggling upward and downward towards its proper life. ... it is a striving full of pain, the cutting of tender flesh by the fetters of the captive as he struggles against their pitilessness.”
—Anna C. Brackett (1836–1911)