The tallest artificial structure is Burj Khalifa, a skyscraper in Dubai that reached 829.8 m (2,722 ft) in height on January 17, 2009. By April 7, 2008 it had been built higher than the KVLY-TV mast in North Dakota, USA.
The nucleolus is a round body located inside the nucleus of a eukaryotic cell. It is not surrounded by a membrane but sits in the nucleus. The nucleolus makes ribosomal subunits from proteins and ribosomal RNA, also known as rRNA. It then sends the subunits out to the rest of the cell where they combine into complete ribosomes.
A nucleolus is made up of nucleic acids and proteins. It is located within the nucleus. The RNA (ribosomal neucleic acid) defines the function of the cell, and is created with â¦ in the nucleolus. nucleolus is made up of nucleic acids and proteins. It is located within the nucleus. The RNA (ribosomal neucleic acid) defines the function of the cell, and is created with â¦ in the nucleolus.