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Dogfish v. Human

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Dogfish Group

on 21 May 2013

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Transcript of Dogfish v. Human

Musculoskeletal (Human) Human structures, as you know, are made of bones. However features like the nose and ears are made of low density cartilage. Average life span is 67.2 years. The average height for a male 5'11" and women is 5'7". Musculoskeletal The dogfish is made mostly of cartilage, not bones. They live 25-30 years on average and can grow from 70-100 cm on average. Human v. Dogfish Nervous The dogfish's brain has very few folds which indicates a very instinctual mind, contrasting that of a human. The instincts in a dogfish are most easily observed in its hunting for prey. Nervous (Human) The human nervous system sends biological information throughout the body. The human brain is what controls the nervous system. The many folds let us know that we have high intelligence levels. Respiratory A dogfish uses gills to filter out oxygen from the water. The lamellae (blood vessels) are used to carry oxygen around the body. Animalia,
Squalus acanthias Dogfish Respiratory (Humans) Excretory Dogfish's rectal gland has one function, its function is to secrete sodium chloride. It does this to get rid of the salt from the salt water it takes in. It is typically a clear plasma. Excretory (Humans) Humans excretory system is used to eliminate the waste products from our food. It moves through intestines and breaks down, similar to a dogfish's system. Reproductive A dogfish reproduces by the male and female engaging in coitus. The mother has eggs inside her that also hatch and develop and inside her. There is no placenta in this process. The pups are in their mother for 18-24 months. Reproductive (Humans) Males in the human species produce sperm while the females have ovaries. They then engage in fornication. Females carry the baby for around 9 months and then give birth. Digestive Dogfish eats mostly fish along with squids and octopus. They have a small intestine and it takes a shark many days to digest food. Digestive (Humans) We excrete waste from food we have digested. The humans have a small and large intestine, where a dogfish has only a small. The process takes between 12-50 hours. Circulatory Circulatory (Humans) Works Cited
-http://en.wikipedia.org/wiki/Dogfish
-http://www.dnr.state.mn.us/fish/bowfin.html
-http://www.nefsc.noaa.gov/sos/spsyn/op/dogfish/
http://www.fishwatch.gov/seafood_profiles/species/dogfish/group_pages/
http://www.pc.maricopa.edu/Biology/ppepe/BIO145/lab04_2.html
http://campus.murraystate.edu/academic/faculty/tderting/anatomyatlas/RogersDay/evolresp.html A human heart has four chambers and is the centerpiece to the human circulatory system. We are warmblooded which means our hearts temperature remains the same (regulate our own temperature.) Dogfish have one heart with 2 chambers. A key difference in the circulatory systems of dogfish and humans is dogfish are coldblooded. Humans breathe through the mouth. We filter air through our lungs to pull out the oxygen. Some humans breathe through gills (have to make sure you're awake.)
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