The Evolution of Whales “Their tongues alone can weigh as much as an elephant and their hearts as much as a car.” The animal called whales what are the largest‚ intelligent and aquatic mammals. However‚ whales were not the aquatic animals at the beginning. After thousands of years of evolution‚ since changes in the terrestrial environment and the demand for food‚ the whales become appearance like a graceful arc from the four limbs. We have to imagine that what happened in the past thousand years
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source: 10 liters per minute Sampling time: 28 minutes Colony Counts: PDA 10-1: TNTC‚ 210 PCA 10-1: 320‚ 230 10-2: 42‚ 90 10-3: 4‚ 12 10-2: 20‚ 10 10-3: 0‚ 0 10-4: 0‚ 1 10-4: 0‚ 1 3. The plankton counts below were obtained after collecting sea water sample 20 times using a plankton net (net mouth diameter: 20 cm‚ net length: 30 cm‚ arm length of sampler: 45 cm) via vertical towing and transferring the concentrated sample of 110 ml to 5% borax-buffered formalin at 1:9 ratio (water
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a threat to boaters. The fish can leap out of the water when startled by boat engines‚ often colliding with people and causing injuries. As very big filter feeders‚ Asian carp consume up to 20% of their bodyweight per day in plankton and can grow to over 100 pounds. Plankton are small floating organisms that form the foundation of the aquatic food chain and are vital to native fish. It is crucial to prevent Asian carp from entering the Great Lakes. Once established in an ecosystem they are virtually
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Global Warming: The Greatest Hoax Since Pope John VIII Some Americans may wonder why global warming has become so prevalent in the media in the past few years. Global warming is one of the most controversial issues to ever be discussed. The issue‚ which should be based completely on scientific evidence‚ is being used in the media as propaganda in order to falsely sway the public’s opinion about the issue. Positions on the issue taken by members of the Republican and Democratic Party are worlds
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states that if we jam the nutrients‚ sewage‚ and fertilizers into the base of the food pyramid‚ it can back up and end up as red tides. This proves a point‚ due to chemicals being added into the water‚ it’s fed on by the bottom of the food chain‚‚ planktons and other small life forms living in the water. The bacteria from the contamination can cause infections. For example‚ Palumbi stated that the bacteria can affect people can cause skin rashes‚ which can cause algal blooms. The more chemicals that
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Abstract The aim of this research is to observe the use of signs in each character in cartoon “Spongebob SquarePants”. The research is focused on analyzing traits and behaviors of each character in this cartoon which represented signs. This paper describes meanings behind characters in cartoon “Spongebob SquarePants”. In this cartoon‚ there are seven main characters which have special traits. The behaviors and traits are a sign which represent something hidden. This research was made based on two
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Puffins You’re on a costal cliff in the North Atlantic Ocean‚ instead of on an offshore island where can also observe this mostly black and white stocky bird with a large beak as it dives down into the water to get food in the form of a fish‚ this bird is a puffin. One of the puffins land on the cliff when it’s a attacked by a fox‚ one of the animals that eats the puffins. Looking away from the mess you look to a puffin in the water getting food in the form of small marine fish for its chicks
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stages of life‚ and doesn’t use it in the same way as the clam. Instead of walking with it‚ it uses the foot to swim until it finds a suitable‚ safe spot to anchor itself and stays there for its entire life. Even though the two shares the same diet “plankton”‚ both bivalves and filter feed‚ the action of the filtering is completely different. The oyster sucks in about four gallons of water per hour allowing the water to
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carbonate (CaCO 3 )‚ a form of limestone. Limestone deposits develop as coccoliths (minute calcareous plates created by the decomposition of plankton skeletons) accumulate‚ forming sedimentary layers. Plankton‚ a tiny marine organism‚ concentrates the calcium found naturally in seawater from .04 percent to 40 percent‚ which is then precipitated when the plankton dies. To make chalk‚ limestone is first quarried‚ generally by an open pit quarry method. Next‚ the limestone must be crushed. Primary crushing
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increments into the lake water and at every increment; the dissolved oxygen was measured along with the water temperature. The measurements were then recorded‚ averaged‚ and then reported to the class. Test Two was collecting samples of plankton in the lake. The procedure for this involved using a “Schindler-Patalas trap” that was lowered into the water to collect
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