Cell Biology 06: The Cytoskeleton Part II: Tubulin. These are notes from lecture 6 of Harvard Extensionâs Cell Biology course. Last week we covered microfilaments, which are made of actin. This week: microtubules, made of tubulin. Why, you ask, does the cytoskeleton need two separate systems? Consider that microfilaments are just chains of individual subunits, whereas microtubules are literally tubes (as weâll see shortly) â hollow cylinders with walls made of chains made of dimers.
Animals (Nickelback song) Animals is a song recorded by Canadian rock band Nickelback. It was released in November 2005 as the second single from their fifth studio album, All the Right Reasons. The song was played at the 2011 Tribute to the Troops.
Rockstar is now the band's best selling digital single to date in the United States, with digital sales there at 4,229,000 as of July 2013. On 12 September 2007, Rockstar reached a new peak of #6 on the Billboard Hot 100, faring better than Far Away; becoming Nickelback's third Top 10 hit from All the Right Reasons, and their fifth career Top Ten on the Hot 100 overall.