called the humus. The worm increases the soil fertility by excreting the leaf litter. The worm has an external gas exchange system which is their skin‚ as they have no internal organs. The worm breathes through its skin as you can see in fig3 in the annotated diagram. The worm’s supply of gas is diffusion through the worms skin and the worm also has an open circulatory system which contains haemoglobin‚ haemoglobin carries oxygen around the body. Red haemoglobin present in worms which is used to transport
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Heart rate in black worms with and without added glucose Introduction: The circulatory system is important in circulating blood‚ nutrients‚ oxygen and chemicals to the body. A circulatory system commonly consists of the fluid it contains‚ such as blood‚ a pumping vessel such as a heart‚ and the vessels‚ which carry the fluid through the body. In a closed circulatory system‚ the fluid‚ blood‚ is contained within the vessels as it circulates through the body. The Lumbriculus variegates‚ or
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Body Systems Intergumentary- The integumentary system consists of the skin‚ hair‚ nails‚ glands‚ and nerves. The main function is to act as a barrier to protect the body from the outside. It also retains body fluids‚ protects against disease‚ eliminate waste products‚ and regulates the body temperature. Cardio Vascular- The cardiovascular system carries blood‚ oxygen‚ and nutrients to organs and tissues of the body. It also carries waste and carbon dioxide from these tissues for removal from
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locust include human as they are considered a delicacy in some countries like china also birds and geckoes. The circulatory system of the locust‚ like all arthropods is open which differs from structure and function of the closed circulatory system that humans and other vertebrates have. A open circulatory system is suitable for the locust because of its small size. In an open system‚ blood (usually called hemolymph) spends much of its time flowing freely within body cavities where it makes direct
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unable to control alcohol consumption‚ can cause or indicate alcohol abuse or alcohol dependence. People who abuse alcohol for an extended time and alcoholics may develop health complications that affect the liver‚ digestive system‚ circulatory system‚ kidneys and central nervous system. When people drink alcohol‚ it travels through the body in their bloodstream. Alcohol reaches every organ and distributes throughout the water in our bodies. Organs such as the brain‚ which contain a lot of water and need
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can be found. Criteria reference To achieve the criteria the evidence must show that the learner is able to: Task no. Evidence P4 LO2: Explain the physiology of two named body systems in relation to energy metabolism in the body 4 M1 LO2: Discuss the role of energy in the body 4 D1 LO2: Analyse how two body systems interrelate with each other to perform a named function or functions. 4 Learner declaration I certify that the work submitted for this assignment is my own. I have clearly referenced
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pulmonary = related to the lungs. It’s the action To lengthen in duration. * Circulatory system which comprises the heart and blood vessels. The system carries nutrients and Oxygen to the tissues of the body and removes carbon and dioxide and other wastes from them. Explanations: How does the Cardio vascular system works? * Your heart and circulatory system make up your cardiovascular system. * Your heart works as a pump that pushes blood to the organs‚ tissues‚ and cells
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(science) I.Identify the parts of the circulatory system and describe them. “Appreciate the importance of the circulatory system.” II. A.Topic I. People Sub.-topic: Circulatory System PELC 1.1‚ page 5 References: Into the Future VI‚ pp.2-3 Exploring Science and Health VI‚ pp.18-20 B. Science Ideas The circulatory system is made up of heart‚ blood and blood vessels. C. Processes: Identifying‚ Describing D. Materials: picture of the circulatory system‚ flashcards‚ charts III. A. 1.Science
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a. The symbionts (Paramecium) of the termite belong to the kingdom Protista b. Paramecium living in the intestines of termites breaks down the cellulose walls of wood fibers releasing proteins that are absorbed by the termites’ digestive system. Paramecium benefit by having an environment to thrive and they ingest the wood fibers for their own nutrition as well. 2. c. An important ecological effect of diatoms is that when they die they hold onto CO2 trapped inside their silicon
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Introduction Crayfish (Procambarus clarkia) are crustaceans that are related to lobsters‚ crabs‚ and shrimps (UNT Lab Manual‚ 2017). They normally inhabit fresh to partly salty water and feed on fish‚ carrion‚ plants‚ and detritus. Because they are completely aquatic‚ they rely on their gills for breathing‚ but can spend short periods of time out of the water if their gills will not dry. Like most crustaceans‚ they have a hard‚ calcified exoskeleton. The heart is located in the upper portion of
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