Cnidaria Hydra‚ Jellyfish‚ Coral‚ & Sea Anemones Phylum Cnidaria- Examples Sea Anemones and Corals - Anthozoa Hydra- Hydrozoa Jellyfish - Scyphozoa Ctenophores - non stinging Cnidarians; Comb Jelly Anatomy A. Polymorphism- Cnidarians have more than one body form: 1.Polyp 2. Medusa Polyp Form Tube with tentacles around the mouth Sessile Medusa Form Umbrella Shape Tentacles around mouth Motile‚ Free-swimming Tentacles Have nematocysts (stinging cells) coiled thread discharges
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diatoms are able to turn carbon dioxide into organic carbon which generates oxygen. However‚ since the shells are heavy the diatoms that die will take the carbon out of the surface waters and into the sediments. Higher rates of productivity mean more plankton and diatoms which result in a higher percentage of organic carbon stored into the sediments. Figure 2 shows that organic carbon was settling at Spanaway Lake’s bottom at much higher rates in
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Barrier Reef it is located parallel to Queensland‚ Australia and stretches for almost 1430 miles. The Great Barrier Reef is more than just a great tourist attraction it is also home to thousands upon thousands of sea creatures ranging from microscopic plankton to whales and sharks. To list a few numbers relating to Great Barrier Reef animals‚ the whole reef system supports over 1500 different species of fish‚ over 4000 different species of mollusk and shellfish‚ such as clams‚ crabs and lobster‚ more than
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shape. Then I developed my theme idea mainly from the research on human body structure‚ the theory of evolution‚ hominid and the mean of clothing. Secondly‚ I started to draw some sketches to help me to think widely. I drew some sketches that like plankton‚ cells and microorganisms that showed how it would be when a body has no shape. I am interested in this strange shape and got some of inspiration for my outfit. Moreover‚ in my research‚ human evolution is one of the most hotly debated areas
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The family Labridae‚ otherwise known as wrasses‚ is marine fish consisting of more than 575 species found in warm-temperate and tropical reefs around the globe (Wainwright et al. 2004). Of all of the coral reef fishes worldwide‚ the family Labridae is one of the most morphologically diverse (Westneat 1995). Due to their different morphologies‚ different fishes within the species prey on different types of food. The main difference making up the separate morphologies‚ and subsequently feeding habits
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1. What transitions has Earth gone through and why? The young earth was anything but habitable. Radioactive elements decaying within its mass and impacts from debris raining down form space generated intense heat. There was no life during this era. Is called the Hadean era and was formed about 4.5 billion years ago. Hadean comes from the Greek word Hades which means “Hell”. That’s how hot the Earth’s temperature was. The next phase in the Earth’s history was the Archean era. It existed
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Part2: Problem analysis: Agriculture: “While CO2 is essential for plant growth‚ all agriculture depends also on steady water supplies‚ and climate change is likely to disrupt those supplies through floods and droughts. It has been suggested that higher latitudes—Siberia‚ for example—may become productive due to global warming‚ but the soil in Arctic and bordering territories is very poor‚ and the amount of sunlight reaching the ground in summer will not change because it is governed by the tilt of
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Cretaceous-Tertiary ExtinctionAlmost all the large vertebrates on Earth‚ on land‚ at sea‚ and in the air (all dinosaurs‚ plesiosaurs‚ mosasaurs‚ and pterosaurs) suddenly became extinct about 65 Ma‚ at the end of the Cretaceous Period. At the same time‚ most 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
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The Carbon Cycle Poppy Matless Carbon is present in all living organisms. When organisms die‚ the carbon is recycled for future generations. 1. Carbon is released as CO2 via respiration and combustion 2. CO2 is absorbed by producers (grass‚ plants etc) 3. Animals feed off of the plant‚ passing on carbon throughout the food chain‚ losing some carbon as CO2 respiration. 4. When the animal dies‚ it is eaten by decomposers‚ and the carbon returns to the atmosphere 5. If decomposition
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Sharks are very interesting creatures who practically rule the ocean. Sharks are at the top of the food chain because of their natural born ability to kill‚ eat‚ hunt and fear nothing. Sharks are killing machines‚ killing and eating anything in their path. When people hear the name shark the first thing that comes to mind is blood thirsty killer or Jaws. Can there be a such thing as a nice shark ? Are all sharks ruthless killers ? The two sharks that comes to mind is "The Great White shark" and "Whale
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