arthropods f. They are pore – bearing animals 7. worms g. animals with backbone 8. coelenterates h. animals without backbone D. 1. Arachnids a. worms having unsegmented bodies 2. insects b. worms having segmented bodies 3. crustaceans c. worms with flat bodies 4. myriapods d. arthropods with 8 legs 5. platyhelminthes e. arthropods with 6 legs 6. annelids f. arthropods with 10 legs 7. nematods g. more than 10 legs II. Classify the following vertebrate animals
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Animal Habitats Unit Katelin Gortat‚ Roseline Etienne‚ Sara Johnson‚ Gayle Chancey October 24‚ 2011 SEI/300 Erika Fiorenza Animal Habitats Unit Our unit focuses on animals and their habitats. This unit is to introduce students to Life Science. One of the core curriculum standards for Utah second grade is Life Science. According to Utah Department of Education (n.d.)‚ Standard 4 of the Science Curriculum for 2nd grade states "Students will gain an understanding of Life Science through the
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| | |Freshwater Stingray (Potamotrygonidae) Conservation through Captive Breeding Programs | | A Research Proposal | |
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Threat of new entrants – low In-shore fishing is not very capital intensive. Starting from scratch costs $20‚000 – 30‚000‚ but anyone with a boat and a few traps could start a lobster catching business. However‚ if you want to catch lobsters in large volumes‚ you’ll have to go offshore fishing as Prelude does. Investments in technology and equipment to offshore fish can run upwards of $1.8 million dollars as did Prelude’s 4th ship. Bargaining power of suppliers – not really applicable in
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they gain structural support for their bodies in different ways. For example‚ sea anemones have a hydrostatic skeleton that produces support via sheets of muscles and an internal cavity filled with fluid. Other invertebrates such as insects and crustaceans have a hard outer shell or exoskeleton. An estimated 97% of all species are alive today are invertebrates. Of all invertebrates‚ the insects are by far the most numerous. There are so many species of insects that scientists have yet to discover
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invertebrates (with or without backbone.) Animals with blood were subdivided into ones that gave live birth (mammals)‚ or ones that gave birth via egg (fish and birds). The animals without blood were then subdivided into insects‚ mollusks‚ and crustaceans‚ which were then divided into those with and without shells. The Swedish botanist Carolus Linnaeus is regarded as the father of taxonomy‚ as he developed a system known as Linnaean classification for categorization of organisms and binomial nomenclature
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collar is completely white‚ as is the rump. The deeply sharped tail is whitish‚ with grey outer webs. The place near the ears is black. Habitat: Arctic Terns inhabit rocky coastal islands‚ coastal beaches‚ and marshes with plenty supplies of fish crustaceans. They breed in rocky gravelling islands‚ barrier beaches‚ gravel bars‚ and occasionally in marshes and bogs. In winter‚ Arctic Terns inhabit pack ice in open water and near-shore icebergs in the Antarctic Region. Diet: The Arctic Tern is a seabird
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difficulties‚ cancer‚ skin allergies‚ etc. As a result‚ pollution can cut back human lifespan. As a second negative effect of pollution is animal extinction. Every year‚ a lot of aquatic animals die because of the water pollution. Some fish and crustaceans eat small particles of plastic dropped in the ocean and cannot digest this easily‚ so they feel full and stop to eat and die of starvation. For instance‚ other animals which live in the forest are killed by deforestation‚ when some people or industries
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Crayfish are crustacean invertebrates that have neurogenic hearts. The myocardial cells need neural input from the cardiac ganglion to be able to beat whereas the myogenic hearts of vertebrates will beat without neural input. The neural input sets the resting heart rate and contractile force of the neurogenic heart. The heart rate of the neurogenic and myogenic hearts is regulated by neurotransmitters. Hearts in vertebrates are excited by epinephrine and serotonin although with varied effects and
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Coral reefs are one of the most biologically diverse ecosystems on earth. They are made up not only of hard and soft corals‚ but also sponges‚ crustaceans‚ mollusks‚ fish‚ sea turtles‚ sharks‚ dolphins and much more. Reef systems serve as barriers protecting many coastal populations and developments from storm damage; they support commercial fisheries; they serve as major tourist attractions; and they hold the possibility of unimagined medicinal compounds in the diverse life forms within them There
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