Exam 2 Study Guide Bio 202 Chapter 13 Differentiate a virus from a bacterium Describe the chemical and physical structure of both an enveloped and a nonenveloped virus. (Include a description of the envelope‚ capsid‚ and core The nucleic acid of a virus is protected by a protein coat called the capsid. The structure of the capsid is ultimately determined by the viral nucleic acid and accounts for most of the mass of a virus‚ especially of small ones. Each capsid
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Respiratory system From Wikipedia‚ the free encyclopedia See also: Respiratory tractRespiratory system A complete‚ schematic view of the human respiratory system with their parts and functions. Details Latinsystema respiratoriumIdentifiers TAA06.0.00.000FMAFMA:7158Anatomical terminologyThe respiratory system (or ventilatory system) is a biological system consisting of specific organs and structures used for the process of respiration in an organism. The respiratory system is involved in
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The ability to regenerate body parts is a more challenging process but is shared by Planarians‚ Annelids‚ some amphibians‚ most lizards‚ and many arthropods. This characteristic has evolved in such a variety of species mainly through convergent evolution. It is difficult to establish clear rules for regeneration ability among a larger diversity of organisms (Agata & Inoue 2012). In each phylum from
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given 13. The pairing of chromosomes along their lengths which is essential for crossing-over is referred to as A. syngamy B. synapsis C. a tetrad D. recombination E. centromere 14. A common form of reproduction in arthropods involves the development of an adult from an unfertilized egg. This is called A. syngamy B. binary fission C. mitosis D.
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A New Era Zoos in general offer so much to the public‚ but zoos such as The Sand Diego Zoo and The Smithsonian National Zoological Park‚ exceed the expectations of any other zoo. Not only do they provide us with a huge variety of different species‚ introducing us to animals we would only dream of seeing‚ they go above and beyond‚ always keeping the animals’ best interest at heart to ensure them happiness. It’s always rewarding to witness the bliss and joy each animal displays‚ but a lot of hard
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Blood is a necessary component of the majority of living organisms (all vertebrates and some invertebrates); it carries vital nutrients‚ oxygen and proteins to body tissues and carries away waste products. Blood‚ although most commonly red‚ can also be found in such colours as green‚ blue‚ clear‚ pink and violet. However‚ the common misconception surrounding the idea that human blood is blue before oxygenation is false. All human blood is varying shades of red; these wild alternate colours are
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The PVNTMED section assigned to medical companies has a primary responsibility for supervising the unit’s PVNTMED program as described in AR 40-5. The section ensures measures are implemented to protect personnel against food‚ water‚ and arthropod borne diseases‚ as well as environmental injuries. Provides advice and consultation in the area of health threat assessment‚ FHP‚ environmental sanitation‚ epidemiology‚ sanitary engineering‚ and pest management. Assists the higher headquarters
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Role of a nurse in infection control In order for infection and disease to occur in an individual‚ a process involving 6 related components must occur. This process has been referred to as the chain of infection. The six steps or links in the chain are etiologic agent‚ reservoir‚ portal of exit‚ mode of transmission‚ portal of entry and susceptible host. To stop the spread of disease‚ one or more of these links must be broken. 1. Etiologic agent a. Metazoan – multicellular animals many
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Exam 1 Study guide Chapter 1: Biology and Tree of Life • What are the five fundamental characteristics of all living organisms? - Energy - all organisms acquire and use energy - Cells - made up of membrane-bound cells - Information - process heredity info. encoded in genes as well as info. from environment - Replication - all are capable of reproduction - Evolution - populations of organisms are continuing to evolve • What is the cell theory? - All organisms are made of cells (pattern)
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Phylum Porifera  Basic Characteristics No definine symmetry Bodies are multicellular‚ with few tissue and no organs. The cells and tissues surround a water filled space but there is no body cavity. Has no nervous system Has a larval stage. Are all filter feeders. Sponges are among the oldest animals‚ being discovered about 500 million years ago! Phylum Cnidaria JellyFish  Basic Characteristics Live in both fresh water‚ and salt water. Radial Symmetry; typically quadramous
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