- published: 28 Aug 2013
- views: 10179
Motility is a biological term which refers to the ability to move spontaneously and actively, consuming energy in the process. Most animals are motile but the term applies to single-celled and simple multicellular organisms, as well as to some mechanisms of fluid flow in multicellular organs, in addition to animal locomotion. Motile marine animals are commonly called free-swimming.
The opposite of motility is sessility.
Motility may also refer to an organism's ability to move food through its digestive tract, i.e., peristaltics (gut motility, intestinal motility, etc.).
At the cellular level, undulipodia (singular undulipodium) are slender cellular protuberances that project from the much larger cell body. Undulipodia, which consists of both eukaryotic flagella and eukaryotic cilia, may be motile or non-motile. Both motile cilia and flagella are motile. Primary cilia typically serve as sensory cellular organelles, and are non-motile. Eukaryotic cilia are structurally identical to eukaryotic flagella, although distinctions are sometimes made according to function and/or length.
See the boy with the empty soul, born in a world without
love!
Escapes to the of digital dreams, to forget all his pain!
Reality is fading away, illusion leads him astray,
through the mirror of imaginations, he´s entering the
world of dreams!
Far beyond reality, far beyond all fears!
Wandering thorugh the maze of lies, to forget the truth!
He´s gone too far at one of his turns, don´t find the way
out of his maze!
What is illusion, what is real? Is there anything he can
feel?
Reality is fading away, illusion leads him astray,
through the mirror of imaginations, he´s entering the
world of dreams!
Far beyond reality, far beyond all fears!