Phylum: Chordata
The Phylum chordata is defined by four major features: a notochord, hollow dorsal nerve chord, pharyngeal slits, and a post anal tail at some point in their life-cycles. The phylum includes mammals, fish, amphibians, reptiles, birds, among others. Some of these features are only present during the embryonic stages of development in some chordates.
This video gives more insight on chordata
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Peregrine Falcon DigestionThe peregrine falcons digestive system is similar to most birds. Because they have high metabolism rates, they need to eat more food proportionally. because they need to fly, the system also has to be as light as possible. It does not have teeth or saliva so it has to use its beak to rip apart its prey. Digestion starts with the ingestion of food by the organism. the food first goes into the esophagus, where it is funneled into the proventriculus, and into the stomach. In the stomach the food is broken down and nutrients are taken from it. Waste travels through the small and large intestine and finally out through the vent, or anus.
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Blue Whale DigestionThe blue whales diet consists mainly of krill, as it filter feeds and this is a food commonly found throughout the ocean. when ingested, Krill go through the baleen in the whales mouth, and into the mouth, where it is stored until the water can be pushed back out. To maximize the amount of krill harvested, whales have developed throat pleats. From here, the food is moved down the esophagus into the stomach. A whales stomach has three chambers: the forestomach, main stomach, and plyoric stomach. the forestomach stores food while breaking it down with contractions of the stomach walls. The main stomach uses bacteria to break down the food further. Finally the plyoric stomach digests the food. after the food is digested, the waste is removed through the intestines.
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Human DigestionThe human digestive system starts with food entering the mouth and being partially broken down by chewing. It is then swallowed, and makes its way down the esophagus. from here it goes into the stomach where powerful acids digest and break it down further. it then enters the small intestine, where bile and other enzymes further break down the food. After the small intestine, food is passed onto the large intestine, where it is stripped of most remaining nutrients. After this it enters the colon, and out through the anus.
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