Marine National Park in the Gulf of Kutch is situated on the southern shore of the Gulf of Kachchh in the Jamnagar District of Gujarat state‚India. In 1980‚ an area of 270 km2. from Okha to Jodiya was declared Marine Sanctuary. Later‚ in 1982‚ a core area of 110 km2 was declared Marine National Park under the provisions of the Wildlife (protection) Act‚ 1972 of India. It is the first national marine park of India. There are 42 islands on the Jamnagar coast in the Marine National Park‚ most of them
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Which of the following is the shortest? Period Epoch Era Eon Which of the following was first? Paleozoic Mesozoic Cenozoic Precambrian Which of the following is known as the “Age of Fishes?” Paleozoic Mesozoic Cenozoic Precambrian During which of the following were dinosaurs active? Paleozoic Mesozoic Cenozoic Precambrian According to the Geological Time Scale‚ when did the mass extinction of the
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Insert Name: Instructor’s Name: Course: Date: 08/July/2010 Sharks have been in existence for more than 300 million years. Their evolution occurred over 150 million years earlier than that of the dinosaurs. Most of the existing fossil data of early sharks was collected from fossilized teeth together with several skin impressions. primitive sharks (Cladodonts) ‚ had teeth which were double-pointed‚ up to 2metres in length‚ ate fish as well as crustaceans‚ and existed approximately
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Earth-shaping events occur early in Earth’s history or later on? Explain why. Based on my geologic time scale‚ there are three events in Precambrian Time‚ two events in Paleozoic Era‚ four events in Mesozoic Era and one event in Cenozoic Era. These events mostly occurred later on in Earth’s history. Mesozoic Era has the most events which are four out of ten events on the list‚ mean that Earth-shaping events happened more recently. Earth-shaping events occur later on because the complex life form such
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Four and a half billion years ago‚ the debris and dust left from the formation of the sun coalesced to form our home planet. 3.5 billion years ago‚ the first living organisms appeared on Earth. About 230 million years ago‚ Dinosaurs diverged from their Archosaurs ancestors during the middle to late Triassic period. For 160 million years they have dominated our planet. They are dubbed the most successful species to have lived on Earth. However‚ 65 million years ago‚ the most recent mass extinction
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began to blossom‚ this caused a growth in insects populations. The climate was the coldest for the Mesozoic times as glaciers appeared at the poles. Due to the steady increase of CO2 levels the cooler weather was gone and a warming period replaced it. Work Cited Morris‚ J. E. "The Cretaceous Period Home Page." Eons and Epochs Home Page. Web. 30 Aug. 2011. <http://eonsepochsetc.com/Mesozoic/Cretaceous/cretaceous_home.html>. Mayell‚ Hillary. “Four-Winged
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those of country rocks. Fortunately‚ few large meteorites strike Earth Only a few reports have been confirmed about meteorites striking people No one has been killed When did dinosaurs become extinct? Mass extinctions occurred during the Mesozoic/Cenozoic era
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plankton and many tropical invertebrates‚ especially reef-dwellers‚ became extinct‚ and many land plants were severely affected. This extinction event marks a major boundary in Earth’s history‚ the K-T or Cretaceous-Tertiary boundary‚ and the end of the Mesozoic Era. The K-T extinctions were worldwide‚ affecting all the major continents and oceans. There are still arguments about just how short the event was. It was certainly sudden in geological terms and may have been catastrophic by anyone’s
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High School Biology - Core Concept Master Cheat Sheet Biology‚ 1 of 6 01: The Science of Biology 03: The Cell • Characeristics of life Organization: all lives are well organized Energy use: all lives need energy to support Reproduction: all lives should be able to reproduce itself Growth: all lives grow and develop. Response to stimuli: all lives can respond to internal or external stimuli Homeostasis: all lives have the ability to maintain a relatively stable internal environment—self-regulation
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[pic]The largest creature ever known to have existed on Earth is the present-day blue whale. The largest dinosaur attained a length of about 22 m and weighed about 36 tons. Today’s blue whale is even larger than its ancestors‚ and may reach a total length of 33 m and a weight of 145 tons. This giant animal is placid and shy. On the ocean surface‚ its normal cruising speed is about 12 knots‚ but it is capable of attaining 20 knots in short bursts. The maximum reported depth reached by the species
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