Earth Science 1. Complete the lab Rock Identification on pp. 86–87 in Earth Science using the Lab Investigator: Rocks and Minerals virtual tool. Once you have opened the virtual tool‚ select 10 rock samples to investigate in this lab. Use the magnifying glass and 3-D Rotate Tool to observe each rock’s color and texture. Record your observations in your data table. Watch the video tests for magnetic‚ float/sink‚ mass‚ and reaction to HCl. Record the data in your data table. Answer Analyze and Conclude
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dead fall to deeper ocean POM: Particulate organic material DOM: dissolved organic material *Microbial Loop: see picture 1 Collection methods of plankton: Epi-fluorescence microscope‚ flow cytometer‚ scuba‚ submarine‚ bioacoustics methods Phytoplankton: red tide=dinoflagellate bloom ONLY Trichodesmium can fix N_2 Radiolaria-amoeboid protozoans (omnivores) Ciliates- use cilia for locomotion heteropods-mollusca more examples Meroplankton: Holo=planktonic whole lives Mero=Juvinile
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Chemistry Ozone Depletion Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth’s stratosphere (the ozone layer)‚ and a much larger springtime decrease in stratospheric ozone over Earth’s polar regions. The latter phenomenon is referred to as theozone hole. In addition to these well-known stratospheric phenomena‚ there are also springtime polartropospheric ozone depletion events. The
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Macrocystis (brown)‚ Plocamium (red) and Ulva (green). Before we conducted anything‚ we first measured the initial oxygen concentration in the water that was used to house each alga. This was done because in the water that we used there happened to be phytoplankton which can respire and photosynthesize. If we didn’t take them into consideration our results would end up skewed. Once that was known we took a piece of each algae that had a surface area of 39.26 cm² and placed them in individual flasks filled
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in marine waters (Schwartz‚ 2005). Winds cause nitrogen and different supplements from the ocean bottom to surface‚ which advance the development of green growth called phytoplankton. Phytoplankton is a primary wellspring of nourishment for some living creatures in the marine waters. Farming toxins may have activated phytoplankton to deliver unsafe blossoms in tides‚ which are radiating noxious poisons to marine life. These noxious poisons are hazardous in light of the fact that the oxygen levels
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Ryan Yates Oceanography 11-12-11 Homework #5 Lesson 17 1) Dredging is digging up mud/sand and transporting it out of the channel. Dredging needs to be done in Ventura Marina because of the shoaling problem. With this problem there is sediment rising under water where the ships are parked. If the sediment gets too high‚ the boats will get stuck and not be able to get in and out of the marina. 2) The problem with Devil’s Slide in San Mateo County is that it has a lock of landslides
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widely different biomes when coupled with other factors such as differential exposure to solar radiation‚ and inherent soil type. Oceans are living systems that themselves support numerous life forms whether plant or animal; whether microscopic phytoplankton or the gigantic mammals like whales. There are gradients in oceans too whether it is in terms of productivity‚ density‚ salinity or in terms of nutrient composition. While coral reefs have one of the highest productivity open oceans have one of
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interest in biological oceanography developed. There are many overlapping aspects of biological oceanography and marine biology that interest me and why I want to pursue a graduate degree in this field. I am particularly interested in marine phytoplankton‚ their role in primary productivity‚ harmful algal blooms‚ and their significance as the base of the marine food web. I am also interested in
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producer are the oceans. The oceans are a home for many species‚ but there are some species that have a larger impact human life than others. Phytoplanktons are single celled plant algae. They form the base of the food chain in the ocean. The phrase “big things come in small packages” can be easily applied to the niche that these plant algae have. The phytoplankton enable all living organisms to stay alive‚ they produce up to 80% of the oxygen we and other organisms breathe‚ they are also the largest
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-F. and A. Mercier. 1999. Mucus as a mediator of gametogenic synchrony in the sea cucumber Cucumaria frondosa (Holothuroidea: Echinodermata). Journal of the Marine Biological Association of the United Kingdom 79:121-129. Himmelman‚ J. H. 1975. Phytoplankton as a stimulus for spawning in three marine invertebrates. Journal of Experimental Marine Biology and Ecology 20:199-214. Kubota‚ T. and M. Tomari. 1998. Reproduction in the apodid sea cucumber Polycheira rufescens: semilunar spawning rhythm and
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