"Phylum chordata" Essays and Research Papers

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    Viruses: Complex Molecules or Simple Life Forms? Viruses have been defined as "entities whose genomes are elements of nucleic acid that replicate inside living cells using the cellular synthetic machinery‚ and cause the synthesis of specialised elements that can transfer the genome to other cells." They are stationaryand are unable to grow. Because of all these factors‚ it is debatable whether viruses are the most complex of molecules or the simplest life forms. While the definition

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    River Ecology Lab

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    Bio 1 River Ecology Lab Report Ecology is the study of relationships between organisms and their environment which includes both physical and biological factors. Humans have a major influence on ecosystems and this is very important in the waterways of California. The American River has been influenced greatly by humans by mining for gold‚ pollution through humans themselves‚ and an immense amount of other things (Becker 1992). We tested the growth of bacteria in the water of the American

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    1.  How many arms does the squid have?  How many tentacles? What do the arms do and what do the tentacles do? It has 8 arms with 2 rows of suckers on the undersides‚ and 2 long feeding tentacles. The arms rip prey apart and stuff it into the mouth while the tentacles capture and pull the prey in. 2.  Do both the tentacles and arms have suction cups?  Yes‚ both have suction cups‚ but the tentacles only have it at the end. 3. What is the function of the fins (also known as finlets)? It acts as

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    Biology 25IB Altruism and Group Behaviour I wonder… Assignment Individually‚ using academic sources research and answer the following question. Explore animal group behavior. Select 5 different organisms from 5 different phyla and simple explore animal group behavior. Include altruism in at least 2 of your descriptions. NOTE: There is no right or wrong answer. I want you to interpret the question and answer it using at least 3 different sources. Two of your sources have to be

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    Diversity of Living Things

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    and can produce their own food through photosynthesis. Not all have to use sunlight to induce that process. Cyanobacteria give out oxygen. Proteobacteria- These live on the roots of some platns and transfer nitrogen from the air to the soil. This phylum contain bavteria like salmonella and E. Coli which are very dangerous‚ but most others are harmless. Firmicutes- contains a wide variety of bacteria that has really thick cell walls. This contains the bacteria Bacillus anthracis causing anthrax

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    C-Fern Report

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    COMPETENCIES A) Introduction. 1. What is the correct scientific name of the fern with which you are working? Why is it important for organisms to have scientific names versus common names? 2. Correctly classify the organism. To which kingdom‚ phylum‚ class‚ order‚ family‚ genus and species does it belong? 3. Provide a brief morphological description of the adult sporophyte generation of this genus. Be use to include both vegetative and reproductive structures. In what part of the world would

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    Mycorrhizae

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    a vast majority of land plants and early-diverging lineages of liverworts suggests that the origin of AM probably coincided with the origin of land plants. Classes include Archaeosporales‚ Diversisporales‚ Glomerales‚ Paraglomerales‚ part of the phylum Globermycota‚ and part of the kingdom fungi (species grow Arbuscular Mycorrhizae) * Fossil evidence and DNA sequence analysis by mycologists show arbuscular mycorrhizae first appeared approximately 400-460 million years ago. Arbuscular mycorrhizas

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    Apicomplexa

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    Apicomplexa is a phylum made up almost entirely of parasites. Apicomplexans are distinguished by their unique method of entering host cells. Apicomplexans are a monophyletic group composed entirely of parasitic species. This species is the best known and probably the largest of parasitic protists. There are about 4‚000 known species‚ but this is certainly just an understatement of the actual number. Of the described species seven genera infect humans; these include the following: Plasmodium‚ Babesia

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    Ttakji

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    major mass extinctions and several minor events have led to large and sudden drops in biodiversity. The Phanerozoic eon (the last 540 million years) marked a rapid growth in biodiversity via the Cambrian explosion—a period during which nearly every phylum of multicellular organisms first appeared. The next 400 million years included repeated‚ massive biodiversity losses classified as mass extinction events. In the Carboniferous‚ rainforest collapse led to a great loss of plant and animal life. The

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    Professor Jun I. Introduction: a. Phascolarctos cinereus is the scientific name of the organism I have chosen for my lab report. b. The common name in which individuals recognize this particular organism is known as the koala bear. c. Kingdom: Animal Phylum: Vertibrata Class: Mammalia Sub-Class: Marsupialia Order: Diprotodontia Sub-Order: Vombatiformes Infra order: Phascolarctomorphia Family: Phascolarctidae Genus: Phascolarctos Cinereus d. Looking at the mammalia class‚ some of the common characterics

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