Abstract: The reason for performing this experiment was to test the agnostic behavior coming from the male Betta fish. This experiment was conducting by taking a male Siamese fighting fish and placing its fish bowl next to a mirror so it would be able to see his reflection. We also exposed the fish to many others to see if the behavior was the same or different when placed next to: a goldfish‚ a female Betta fish‚ and a zebra fish. My hypothesis was supposed by this experiment and it was observed
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Preparing for Dissection The first thing to do when preparing to dissect a shark is to get a pair of gloves so the smell of shark and the raw shark is not touched and on whoever will be dissecting. The next thing to do is get all of the materials that will be needed while dissecting the shark. The things that will be needed are: scalpel‚ tweezers‚ prop‚ pickups‚ scissors‚ and a tube to put the shark in. Then of course the last thing needed before beginning the dissection is the shark. External
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Class: Actinopterygii Order: Perciformes Family: Scombridae Scombridae is the family of the mackerels‚ tunas‚ and bonitos. Scombrids have two dorsal fins‚ each of which can be depressed into grooves in the back‚ and a series of finlets between the rear dorsal fin and anal fin and the tail. The base of the tail is slender‚ and the caudal fin strongly divided. Primarily swift predators of open seas; some of the smaller species strain zooplankton through their gill rakers. Example of a Scombridae
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signals. The integument system of dog fish shark‚ Squalus acanthias‚ is portion of what makes up its external morphology. In this experiment‚ integument comes along with the external features of the shark—its gills‚ scales and appendages in the form of fins. Shark‚ a typical vertebrate means that its head is incased in a cranium and its vertebrae are associated with the notochord. More of its external morphology will be discussed here. SPECIFIC OBJECTIVES By the end of the experiment‚ the students should
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are not in the wild their majestic dorsal fins can collapse‚ their death rate increases‚ and the chances of a trainer being hurt is escalated.
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Sharks by : Maritza Martinez Most people are afraid of sharks and don’t want anything to do with them but there are people that actually know things about sharks and don’t fear them. Sharks much like people come in all different shapes and sizes and can and do live mainly everywhere. What people don’t know is that sharks are much like people they take care of their young by protecting them‚ feeding them‚ teaching them to hunt. They are thought of as
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to three inches (seven centimeters) long and as they break off or wear out‚ new teeth grow in to replace them. One of the most noticeable features of the great white is the dorsal fin which rises out of the water when a great white swims near the surface of the ocean. The fins on either side of the shark are called pectoral fins and they help to direct the shark closer to the surface or deeper into sea. The shark’s tail is powered by very strong muscles. It sweeps the tail side to side and can reach
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isn’t good for them or the people possibly watching them. Although many people would say it could help with education‚ it truly doesn’t educate because the behavior of the whales has changed and it wouldn’t be accurate. Orcas in captivity have dorsal fins‚ a
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known for tendency promote aggression‚ often resulting in death (Simpson‚ 968). To promote aggression‚ Betta splendens take measures to appear larger to the other fish (or its on reflection through a mirror‚) including operculum flares‚ dorsal fin flares‚ and caudal fin flares. They have a strong sense of terriroty and will defend it all costs‚ often resulting in biting or maiming (Bronstein‚ 1983). It is hypothesized that Betta splendens will display agonistic traits more frequently when exposed
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and Devonian periods‚ These jawless fish were small‚ armored‚ bottom-dwelling freshwater filter feeders. The head was covered with thick bony plates‚ and the trunk and tail were covered with thick scales. Ostracoderms had median fins; some species had paired pectoral fins. The living relatives of the Ostracoderms are the lampreys and hagfishes. These animals have cylindrical bodies up to a meter long
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