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Name:Charlie van der ValkDate:Investigation: Exploring Different Types of CellsAll living organisms are made of cells. The smallest cells are about 0.001 millimeters in diameter and belong toone of two domains: Bacteria and Archaea. Organisms in these groups do not have a nucleus ormembrane-bound organelles. These organisms were some of the first to live on the planet; archaea lived over3.5 billion years ago.Organisms can belong to a third domain: Eukarya. Eukaryotic cells are larger (0.01 to 1 mm) and contain a nucleus and organelles, such as mitochondria and endoplasmic reticulum. Plants, animals, fungi and protistsbelong to this domain.In this investigation, you will view both preserved specimens and living specimens from the domain Eukaryaand the domain Bacteria.Exercise 1: Getting to Know the Domain BacteriaBacteria cells are very small compared to eukaryotic cells. They are visible with a light microscope using the high power objective. Bacteria come in four shapes: cocci (round), spiral, and bacillus (rod-shaped).