The Latin name is from the Japanese name for T. sieboldii. T. canadensis and T. heterophylla were discovered early (before 1800) and until 1855 were simply treated as species of Pinus, but in 1842 T. sieboldii, the southern Japanese hemlock, was described as Abies tsugae.
The brains of the cell, the nucleus directs cell activities and contains genetic material called chromosomes made of DNA.
Nucleus-The nucleus is the control center of the cell. It is the largest organelle in the cell and it contains the DNA of the cell. DNA (Deoxyribonucleic Acid) contains all the information for cells to live, perform their functions and reproduce.Inside the nucleus is another organelle called the nucleolus.itochondrion-This is the cellâs powerhouse. This organelle packages the energy from the food you eat into ATP molecules. Every type of cell has a different amount of mitochondria (plural). There are more mitochondria in cells that have to perform lots of work, for example-your leg muscle cells, heart muscle cells etc.