plants‚ dead or dying animals‚ and detritus. There is also a large number of species of other animals known to eat crayfish. Crayfish have been reported to be preyed upon by at least 46 species of fish‚ 10 amphibians‚ 20 reptiles‚ 38 birds‚ and 6 mammals (including humans). Crayfish are preyed upon heavily by fish‚ such as trout‚ pickerel‚ and bass‚ and other invertebrates may eat them. Body Plan Crayfish have bodies similar to that of the presumed ancestral crustacean. Such a body is essentially
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the digestive‚ cardio-vascular and respiration systems are interrelated‚ and how they function in a specific task/job. Internally in the human body‚ has to be well-controlled and organised with different progressive systems in which they must interconnect and interrelate in order to perform their role efficiently and successfully. There are different types of systems in the body (mainly 10) in which they all function in different ways and interrelate. An example would be the‚ nervous system which
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of the following is not an accessory digestive organ? a. liver b. tongue c. stomach d. pancreas 2. What part of the digestive system where mechanical digestion happens? a. mouth b. rectum c. stomach d. esophagus 3. The throat is divided into two separate tubes: the trachea and the esophagus. Which of the organs prevents food from entering the trachea? a. The uvula b. The tongue c. The trachea d. The epiglottis 4. What is the main functions of the digestive system? a. ingestion and digestion
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captivity affects the overall health of marine mammals Problem (2 Points) Does captivity affect the overall health of marine mammals? Research (2 Points) The average life span of captive marine mammals compared to free marine mammals. Reports of abuse of captive marine mammals. Hypothesis (4 Points) If a marine mammal is held in captivity‚ then its health will decline. Procedure (4 Points) 1. Find and tag a marine mammal to study in its natural habitat. 2. Weekly
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An explanation of the physiology of two named body systems in relation to energy metabolism in the body. (P4) In this assignment I will be explaining the physiology of two named body systems in relation to energy metabolism in the body‚ the Respiration system and the Digestive system. I will start off by giving a definition of energy metabolism in the body. Metabolism in the body is a collection of chemical reactions that takes place in the body’s cells. Metabolism converts the nutrients in the
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Give an account of nitrogenous excretion in mammals. Excretion plays an important part in the process by which the internal environment is regulated to maintain homoeostasis. It is the elimination of the unwanted products of metabolism and of substances present in excess within the organism. Animals excrete nitrogenous waste products such as ammonia‚ uric acid or urea. These or similar products to that produced by the deamination of any excess protein that has been eaten as nitrogenous compounds
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The felids are a rapidly evolving family of mammals that share a common ancestor only 10–15 million years ago‚[26] and include‚ in addition to the domestic cat‚ lions‚ tigers‚ cougars‚ and many others. Within this family‚ domestic cats (Felis catus) are part of the genus Felis‚ which is a group of small cats containing approximately seven species (depending upon classification scheme).[1][27] Members of the genus are found worldwide and include the jungle cat (Felis chaus) of southeast Asia‚ European
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A Career in Marine Mammal Science Many people want to become involved with marine mammals such as sea otters‚ dolphins‚ seals‚ manatees‚ or whales. Perhaps such interest has been sparked by Flipper the dolphin on television or Keiko the orca whale in the popular movie‚ Free Willy. Interest in marine mammals has also been generated by the many underwater movies publicly pleading for protection of endangered whales. Others are just simply scientifically curious. At any rate‚ there are many reasons
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The Digestive System: Anatomy Review 1. List two main divisions of the digestive system. a. _____________________ b. _____________________ 2. The four main layers of the digestive tract wall are a. ___________. b. ___________. c. ___________. d. ___________. 3. Label the diagram below with the four main layers you listed in question 6. 4. The mucosa includes a type of columnar ________that forms the inner lining of the lumen 5. Blood and lymph vessels of the mucosa are found in its ______
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that happens in a cell. Still each one has its own process and rate that it converts molecules. Studying enzymes shows how chemical reactions work. Without enzymes‚ chemical reactions would never be possible. One important enzyme in the body is the digestive enzyme; it helps to digest food‚ for they are vital to humans and life (Jon Barron‚ 2011). STRUCTURE AND FUNCTION OF AN ENZYME Each enzyme is made from an amino acid and is made by stringing together between 100 and 1‚000 amino acids in a special
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