The Origins of Multicellularity

The Origins of Multicellularity - photomicrographs...

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The Origins of Multicellularity The oldest accepted prokaryote fossils date to 3.5 billion years; Eukaryotic fossils to between 750 million years and possibly as old as 1.2-1.5 billion years. Multicellular fossils, purportedly of animals, have been recovered from 750Ma rocks in various parts of the world. The first eukaryotes were undoubtedly Protistans , a group that is thought to have given rise to the other eukaryotic kingdoms. Multicellularity allows specialization of function, for example muscle fibers are specialized for contraction, neuron cells for transmission of nerve messages. Microscopes Microscopes are important tools for studying cellular structures. In this class we will use light microscopes for our laboratory observations. Your text will also show light
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Unformatted text preview: photomicrographs (pictures taken with a light microscope) and electron micrographs (pictures taken with an electron microscope). There are many terms and concepts which will help you in maximizing your study of microscopy. There are many different types of microscopes used in studying biology. These include the light microscopes (dissecting, compound brightfield, and compound phase-contrast), electron microscopes (transmission and scanning), and atomic force microscope. The microscope is an important tool used by biologists to magnify small objects. There are several concepts fundamental to microscopy....
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This note was uploaded on 11/22/2011 for the course CHEMISTRY CHM1025 taught by Professor Laurachoudry during the Fall '10 term at Broward College.

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