Check the Roatan, Honduras weather in December before you book your next holiday. This gives the best indication of the weather in December and includes figures for temperature, sunshine and rainfall. 1  28Â°C max day temperature.
A cilium (plural cilia) is an organelle found in eukaryotic cells. Cilia are slender protuberances that project from the much larger cell body. There are two types of cilia:1  motile cilia, which beat against fluid outside the cell. 2  non-motile, or primary cilia, which typically serve as sensory organelles. cilium (plural cilia) is an organelle found in eukaryotic cells. Cilia are slender protuberances that project from the much larger cell body. There are two types of cilia:
Source: Amelia Shoemark. 'Motile' (or moving) cilia are found in the lungs, respiratory tract and middle ear. These cilia have a rhythmic waving or beating motion (see right). They work, for instance, to keep the airways clear of mucus and dirt, allowing us to breathe easily and without irritation. They also help propel sperm.