Phylum Mollusca Unit 4 Mollusk Introduction Phylum Mollusca Molluscus = soft Soft-bodied animals that usually have an internal or external shell. Includes snails‚ slugs‚ clams‚ squids‚ and octopi. True coelom Complex‚ interrelated organ systems Body Plan The body plan of most mollusks have 4 main parts: foot 2. mantle 3. shell 4. visceral mass 1. Foot: muscular; may be used for crawling‚ burrowing‚ or tentacles for capturing prey Mantle: thin tissue layer
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The fifth animal disease that is being discussed is an infectious equine virus call Streptococcus equi also known as strangles. Strangles is equine distemper which is a contagious upper respiratory tract infection seen in horses‚ donkeys and mules. This infection is caused by a bacterium called Streptococcus equi and is zootic in domesticated horses worldwide. It is a gram positive bacteria‚ capsulated β-hemolytic Lancefield group C coccus‚ which is an obligate parasite and a primary pathogen
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What changes did you make to your reef tank during the 12 weeks and why did you make them? After I selected my fish‚ I noticed that the tank began to grow algae. The next time I selected fish and invertebrates‚ I chose to add cleaner shrimp and snails to my tank. The pH then started to go up‚ then down‚ and then up again so I added pH buffer solution so the pH could stabilize at 8.1. After that‚ I decided to add water to keep the specific gravity from getting too high and maintaining stable.
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A2 BIOLOGY CORE PRACTICAL SUMMARY Name of practical Independent & dependent variables Observing patterns by Ecological sampling Random sampling Systemic sampling Other variables to be controlled Abiotic factors e.g. light‚ temperature‚ soil water‚ humidity‚ O2 concentration‚ pH‚ aspect‚ slope angle equipment Gridded Quadrat Tape measure Point quadrat Pitfall trap Sweep Net Pooter Tullgren funnel Baermann funnel Method and outcome Several methods. 1 random sampling = set up grid using
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organism‚ plants and animals that live in Everglades which makes up that ecosystem. Organisms like Algae‚ Swamp Lily and Saw Grass that are producers. Then there are the Primary Consumers Florida Apple Snails‚ White Tail Deers‚ Mosquitofish and Green Sea Turtles. Next‚ there are the secondary consumers Snail Kite‚ Great Blue Heron‚ Opossum and Raccoon. The Tertiary Consumer are American Alligators‚ Panthers and Bobcats‚ and lastly the Quaternary consumers are the Python and Anaconda. These are some of
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may have no common predators‚ competitors‚ diseases‚ or parasites. These species can overrun an ecosystems and destroy its balance. For example‚ a giant African land snail was introduced to Brazil in 1988. These snails were used as a cheap substitute for escargot‚ but were released into the wild after its price dropped. These snails now inhabit 23 of Brazil’s states and devastate the crops and native plants of the country. Population growth‚ overconsumption‚ pollution‚ and climate change can cause
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population. An example of an invasive species is the giant land snails from Africa were introduced widely to serve as garden ornaments in Hawaii. Achatina fulica‚ the land snails‚ were multiplying quickly‚ consuming crops‚ and killing off the native snails. A solution began to rise in the 1950’s to introduce Euglandina rosea‚ rosy wolfsnail‚ to Hawaii. However‚ the plan backfired when the snails decided to attack and eat the native snails. This along with other variables such as rats‚ shell collectors
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! ! ! ! ! ! ! ! ! ! ! CLIONE LIMACINA EATING HABITS AND THE DECLINING OF THEIR FOOD! ESSENTIALS OF MARINES LIFE! MAHIDOL UNIVERSITY INTERNATIONAL COLLEGE! ! ! ! ! ! ! ! ! ! ! ! ! ! Sea angel! ! Sea angels have been parts of arctic ecosystem since the beginning of Ice age. The 8irst sea angels’ ancestor lived during Palaeozoic era. This era
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Genetically Vigorous Populations Team B BIO/280 May 5th 2014 Genetically Vigorous Populations Biodiversity is life’s variety. It is the varying genetics that each species carries that makes it different and “unique”. Biodiversity is important‚ not only in evolution‚ but in survival; when sometimes those terms can mean the very same thing. Interestingly‚ biodiversity can mean a variance in the life itself – or within the genetics of a species. In keeping breeding habits
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The first time the two boys told the story‚ their voices touched the audience. The effect had been so strong that even the village headman who‚ for all his harshness‚ couldn’t hold back the years pouring from his eyes. When Luo was sick with malaria‚ the little Seamstress brings four sorceresses to help Luo recover. To keep the sorceresses awake and watching over Luo the narrator recounts ‘The Little Flower Seller’. When the narrator told the story‚ the sorceresses weren’t too engaged and did not
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