Invertebrate Endocrinology Overview of the Endocrine System * System of ductless glands that secrete hormones * Hormones are “messenger molecules” * Circulate in the blood * Act on distant target cells * Target cells respond to the hormones for which they have receptors * The effects are dependent on the programmed response of the target cells * Hormones are just molecular triggers * Basic categories of hormones * Amino acid based: modified amino acids (or amines)
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TYPES OF ECONOMIC SYSTEMS The world’s economic systems fall into one of four main categories: traditional economy‚ market economy‚ command economy and mixed economy; however‚ there are unlimited variations of each type. An economic system must define what to produce‚ how to produce it and for whom to produced it. Depending on the products produced and the environment‚ certain economic strategies will be more successful than others. Traditional A traditional economic system is one in which each new
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guarantee CIA of their information and systems? Define confidentiality – what I think it means – eg of technologies to guarantee confidentiality CIA refers to the confidentiality‚ integrity and availability of an information system and is used as a yardstick for evaluating information systems security. CIA cannot be guaranteed in any organization‚ however there are many ways in which it can be improved. First of all confidentiality in respect to information systems is where information is restricted
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reproductive system is a collection of internal and external organs (male and female) that work together for the purpose of recreating. Many scientists argue that the reproductive system is the most important system in the body. Without the reproductive system we would not be able to reproduce. 1 For the male reproductive system there are two major parts: testes‚ where the sperm is produced and the penis. In males the penis and urethra belong to both the urinary system and reproductive system. The testes
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Family Systems Theory / Micro & Macro Assessment A system theory is utilized in investigating or describing how something or someone functions together. “Family systems theory describes the family as an open‚ complex system in which all‚ of the members are interconnected” (Pender‚ Murdaugh‚ & Parsons‚ 2015‚ p.15). The five concepts that help define a unit are: family system as part of a larger supra system and composed of other subsystems‚ family as a whole greater than the sum of its parts‚ change
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Essay Reproductive system The reproductive system is a system of organs within an organism which work together for the purpose of reproduction. Hormones and pheromones are also important accessories to the reproductive system. The major organ of the reproductive system includes penis and vulva as well as a number of internal organs including the testicles and ovaries. Most other vertebrate animals have generally similar reproductive systems consisting of gonads‚ ducts‚ and openings. Human reproduction
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atlantic system was a trade in the 1600s between Africa‚ Europe‚ and the Americas. It was an extraordinary trade of peoples‚ plants‚ animals‚ and diseases. It had an impact around the world and still does to this day. It is considered a drastic turning point in human history and earth’s ecology. There are good and bad sides of the creation of the atlantic system. Some were intentionally brought to different places and some were accidental. The most profound impact of the atlantic system was the transportation
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Hannah Loback Muscle Essay The muscular system is a network of tissues that controls movement of the human body. Attached to the skeletal system are a multitude of muscles consisting of tissues‚ blood vessels‚ tendons‚ and nerves. Muscles are a bundle of fibrous tissue in the body that have the ability to contract‚ thus producing movement and maintenance of body parts. Without this system the ability to function and maintain a healthy lifestyle would be impossible. Correct posture‚ locomotion‚ and
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The endocrine system is the collection of glands that produce hormones that regulate metabolism‚ growth and development‚ tissue function‚ sexual function‚ reproduction‚ sleep‚ and mood‚ among other things. The endocrine system is a very important system in the human body. There are many endocrine glands in this system‚ including -but not limited to- the pituitary gland‚ hypothalamus‚ pineal gland‚ thyroid gland‚ parathyroid glands‚ adrenal glands‚ pancreas‚ gonads‚ placenta‚ thymus‚ heart and gastric
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depends on its ability to provide food‚ clothing and shelter for its people. All societies have something else in common. They have an economic system or an organized way of providing for the wants and needs of their people. The way in which these decisions are made will determine the type of economic system. There are three major kinds of economic systems: traditional‚ command and market. In a society with a traditional economy nearly all economic activity is the result of ritual and custom. Habit
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