Chapter 1: The Main Themes of Microbiology What is Microbiology? • micron = small and biologia = study of living things • Microbiology = study of small living things • How small is “small”? • What do we really mean by living? • Working definition: Study of entities too small to be seen with the unaided human eye. • (< 0.2 mm = 200 µm = 200‚000 nm) Types of Microbes Prokaryotes include Bacteria and Archaea Eukaryotes include Protista (Algae and Protozoa)‚ Fungi‚ and Animalia
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Introduction The annelids (also called "ringed worms")‚ formally called Annelida (from Latin anellus "little ring")‚ are a large phylum of segmented worms‚ with over 2‚000 modern species including ragworms‚ earthworms and leeches. Annelids are abundance in freshwater‚ brackish and marine sediments. They are bilaterally symmetrical‚ triploblastic‚ coelomate organisms. These invertebrates can be recognized by their segmented bodies. Segments each contain elements of such body systems as circulatory
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colony. Most unicellular organisms are of microscopic size and are thus classified as microorganisms. However‚ some unicellular protists and bacteria are macroscopic and visible to the naked eye.[3] Examples include: Xenophyophores‚ protozoans of the phylum Foraminifera‚ are the largest examples known‚ with Syringammina fragilissima achieving a diameter of up to 20 cm.[4] Nummulite‚ foraminiferans Valonia ventricosa‚ an alga of the class
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plants is to classify them in groups with similar characteristics. Then continue to divide and sub-group until you have one type of plant in each group. The main level of division in plants are as follows: Plants are divided into PHYLA (singular: phylum) Phyla can be divided into DIVISIONS Divisions are divided into CLASSES Classes are divided into ORDERS Orders are divided into FAMILIES Families are divided into GENERA (singular: genus) GENERA are divided into SPECIES Species are sometimes
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• Thesis • The Hawksbill Sea Turtle will become extinct with the rising temperature cause by the changes in our climate. • Taxonomy o Kingdom: Animalia o Phylum: Chordata o Class: Reptilla o Order: Testudines o Family: Cheloniidae o Genus: Eretmochelys o Species: imbricate o (NOAA 2005) http://www.nmfs.noaa.gov/pr/species/turtles/hawksbill.html#taxonomy • Distribution o Found in the tropical regions of the globe o Inhabit the Atlantic‚ Pacific‚ and Indian Oceans “Hawksbills are believed to inhabit
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past readings on animal behavior. Crayfish‚ also called crawfish or crawdad‚ are closely related to the lobsters‚ crabs‚ and even shrimp in the class malacostraca. Crayfish are related to lobsters‚ crabs‚ pill bugs‚ krill‚ and many more in the phylum crustacea. More than half of the more than 500 species of crayfish occur in North America‚ especially in Kentucky and Louisiana in the Mississippi basin. Crayfish also live in Europe‚ New Zealand‚ East Asia and throughout the world. Mostly all
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Oceania‚ northwestern North America. ← Glossoscolecidae : Central and northern South America. ← Eudrilidae : Tropical Africa. Introduction Earthworm Locomotion and Its Importance To Soil Lumbricus (earthworm) is an example of the phylum Annelida. The body of annelids is divided into sections by septa (membranes). Each section is a compartment. Its movement is a result of the action of body-wall muscles on incompressible fluids in the compartments (segments). Therefore‚ a compartment
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Bioluminescence Have you ever experienced a light show underwater? No‚ you are right that is not and can not be actually lights with electricity‚ but is the notorious scientific discovery of bioluminescence. One of the earliest sightings was by Aniximenes in 500 B.C. where he described that the alluring light show as “glowing when he struck the sea with an oar”. People have observed bioluminescence countless times ever since. In the Mesopelagic zone of the ocean‚ which is about 200m to 1000m
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Medium formulation is an essential stage in the design of fermentation process. Most fermentation media require liquid media‚ although some solid-substrate fermentations are also operated. Fermentation media must satisfy all the nutritional requirements of the microorganisms and fulfill the technical objectives of the process. There are several stages where media are required in a fermentation process; inoculum (starter culture)‚ propagation steps‚ pilot-scale fermentations and the main production
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Taim Awad Ms. Mocarski A.P. British Literature 09/07/2014 Art‚ Literature‚ and the Carriers of Civilization. In 1848‚ Thomas de Quincey wrote an essay titled “The Literature of Knowledge and the Literature of Power.” De Quincey was a 19th century British author. He is well known for “Confessions of an English Opium Eater.” In his essay‚ he divides literature – books to be precise‚ into two separate roles: the literature of knowledge which conveys information that has a clear use (such as a cookbook)
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