Here are all the episodes he kisses her ! Coming Together-Kisses her before he leaves leaving only a Note. Summer's End-kisses her in the Rain while dating Kit and Amy wants him back but he rejects her..
Symbiosis occurs when two different species benefit from living and working together. When one organism actually lives inside the other it's called endosymbiosis. The endosymbiotic theory describes how a large host cell and ingested bacteria could easily become dependent on one another for survival, resulting in a permanent relationship. Over millions of years of evolution, mitochondria and chloroplasts have become more specialized and today they cannot live outside the cell.
The endosymbiosis is usually described as the endocytosis or. phagocytosis of a bacterium, some type of aerobic alpha- proteobacterium, into the host. cell, which resulted in the eventual formation of mitochondria (e.g., Martin and MÃ¼ller, 1998; Lang et al., 1999). The theory of endosymbiosis itself has been well supported by. fairly recent genetic data since Margulis first seriously proposed it a few decades ago.