Evolution : biodiversity Form Anatomy Structure Morphology : The study of different shapes Function Mechanics (biomechanics) Physiology : study of function Steve Vogel : founding father of Biomechanics * “without function is a corpse‚ without form is….” EX : * Form : Large muscles * Function : lifting weight Assumption : should be able to lift heavier loads Comparative Morphology and Physiology The more comparisons you make‚ the easier it gets to understand Ex : digestive
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EVOLUTION and NATURAL SELECTION (30 pts) a. What is a mutation? Provide 3 examples of different mutations causing specific diseases in human population. For each example explain what kind of mutation that is (ie. A point substitution‚ a chromosomal duplication etc). Mutation is a genetic mistake(s) that occur during DNA replication. 1. Progeria accelerated aging; mutation in the LMNA gene 2. Hypertrichosis excessive hair on the shoulders‚ face and ears; implicate it to a rearrangement
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Cell wall is a fairly rigid‚ protective and supportive layer surrounding the cell external to plasma membrane of plants‚ bacteria‚ archaea‚ fungi and algae. It is absent in animals and most protists. It was first observed by Robert Hooke in 1665. It is not an entirely rigid structure as the cell wall expands due to the growth of the cell. It varies in thickness from o.1mm to I0mm.in most of the cells‚ cell wall is present from the very beginning to the last‚ but in slime molds (myxomycetes)
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Severe weather alert: U.S. study finds tornadoes coming in swarms Thursday‚ October 16‚ 2014 WILL DUNHAM FOR REUTERS A severe thunderstorm wall cloud is seen over the area of Canton‚ Mississippi in this April 29‚ 2014 file photo. REUTERS/Gene Blevins/Files By Will Dunham WASHINGTON (Reuters) – Tornadoes in the United States are increasingly coming in swarms rather than as isolated twisters‚ according to a study by U.S. government meteorologists published on Thursday that illustrates another trend
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Aseptic Technique and Culturing Microbes‚ Lab #3 Purpose: The purpose of the this experiment is to learn to transfer microorganisms to a nutrient medium to promote growth using aseptic techniques. which are a method used to prevent unwanted organisms from contaminating a medium. We will also learn about different types of culture media‚ including MRS broth and nutrient broth‚ learn about oxygen and temperature requirements for microbial growth and how to control microbial growth. Procedure:
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Food Chain: A sequence that links species by their feeding relationships. Herbivores: Organisms that only eat plants. Carnivores: Organisms that only eat animals. Omnivores: Organisms that eat both plants and animals. Detritivores: Organisms that eat detritus‚ or dead organic matter. Specialist: A consumer that primary eats one specific organism. Generalist: Consumer that has varying diet. Trophic levels: The levels of nourishment in a food chain. Food Web: Shows the network of feeding relationships
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Eukaryotes are organisms whose cells are organized into complex structures by internal membranes and a cytoskeleton. The most characteristic membrane bound structure is the nucleus. This feature gives them their name‚ (also spelled "eucaryote‚") which comes from the Greek word referring to the nucleus. Animals‚ plants‚ fungi‚ and protists are eukaryotes. Microorganisms and all other living organisms are classified as prokaryotes or eukaryotes. Prokaryotes and eukaryotes are distinguished on the
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molecule‚ organelle‚ cell 6. The classification system most commonly used by biologists today contains five domains. True False 7. Unicellular prokaryotes A. lack a membrane bounded nucleus B. are classified in the domains Bacteria and Archaea C. are found in almost all habitats D. All of the choices are correct. 8. Match the items below with their descriptions: 1. Plantae | multicellular‚ photosynthetic organisms | ____ | 2. Animalia | multicellular organisms that ingest
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------------------------------------------------- ------------------------------------------------- EVALUATION OF EFFECTIVITY OF SOAPS AND DETEGENTS AGAINST BACTERIA BACTARIUM EVALUATION
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Prokaryotic cells are single celled organisms that were formed at the formation of the earth‚ so are the most basic life forms. The prokaryotes are organised in the ‘three domain system’ and include bacteria and blue-green algae. Prokaryotes live in many environments including extreme habitats such as hydrothermal vents‚ hot springs‚ swamps‚ wetlands‚ and the guts of animals. This is a diagram of a prokaryote cell and it shows that they are not very complex cells. They do not contain any membrane
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