Volvox is a polyphyletic genus of chlorophyte green algae in the family Volvocaceae. It forms spherical colonies of up to 50,000 cells. They live in a variety of freshwater habitats, and were first reported by Antonie van Leeuwenhoek in 1700. Volvox diverged from unicellular ancestors approximately 200 million years ago.
Volvox is the most developed in a series of genera that form spherical colonies. Each mature Volvox colony is composed of numerous flagellate cells similar to Chlamydomonas, up to 50,000 in total, and embedded in the surface of a hollow sphere or coenobium containing an extracellular matrix made of a gelatinous glycoprotein. Except during the formation of daughter colonies, vegetative cells comprise a single layer with the flagella facing outward. The cells swim in a coordinated fashion, with distinct anterior and posterior poles. The cells have eyespots, more developed near the anterior, which enable the colony to swim towards light. The individual algae in some species are interconnected by thin strands of cytoplasm, called protoplasmates. They are known to demonstrate some individuality and working for the good of their colony, acting like one multicellular organism.
Te vestiste y te acompañé
a tomar el ciento cuarenta y tres
Me miraste y yo te miré
me abrazaste y yo te besé
y te fuiste.
Yo me fui caminando por ahí
La ciudad se duerme y yo me desespero
Sí, no tiene sentido cuando vos no estás
Vuelve a casa
Yo te quiero a mi lado otra vez
y no sólo una hora o tres
ya no sé como hacerte entender
que te quiero mucho más que ayer
y no te quiero sólo para estar
una noche y nada más
Por qué cada vez que yo te necesito
da la casualidad que vos nunca estás?
Vuelve a casa