A cellular organelle is a structure in the cell that performs a specific function.
Nucleus - stores cell's DNA; DNA replication occurs here
Ribosome - produce protein; "factories" of the cell
Mitochondria - breaks down food for energy to be used by the cell; "powerhouse" of the cell
Vacuole - store materials such as food, water, sugar, minerals, and waste products
Endoplasmic reticulum - carry materials throughout the cell; "transport system"
Invasive firestorm method. All pests are now dead with the added benefit of fewer trees to infest.
You could say DNA is found in both viruses and in living single-celled organisms because DNA is necessary to replicate itself.
