Phoenix Material Week Two Quiz Multiple Choice Please choose the correct answer to the following questions. 1. ____Sensation_________ refers to the experience created from stimulating a sense organ. a. Perception b. Stimulus c. Transduction d. Sensation 2. _________Absolute Threshold____ refers to the smallest change in sensation that can be detected at least 50% of the time. a. Adaptation b. Weber’s Law c. Difference Threshold d. Absolute Threshold 3. Sensory cells located
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energy from the environment and encode it as neural signals‚ a process traditionally called sensation. As we sense the world or react to particular stimuli ‚ our brains receive that visual information and transform it into neural impulses called transduction. Our eyes‚ a light-capturing organ‚ consists of many parts that aid in our vision. The retina‚ specifically the eye’s light-sensitive surface on which the light rays are focused‚ contain rods and cones. These cells enable color and are sensitive
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Meningitis is a bacterial infection of the membranes covering the brain and spinal cord. A family who lived in Geneva‚ Switzerland was first diagnosed with the disease in 1805. It was not until 1866‚ that the disease traveled its way into the United States. Professor Anton Weichselbaum discovered the cause of cerebro-spinal meningitis illness in 1887. There are five types of meningitis: bacterial meningitis‚ viral meningitis‚ parasitic meningitis‚ fungal meningitis‚ and non-infectious meningitis
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environment. Pathogens come in a wide variety. The types are fungal‚ bacterial‚ viral‚ and other parasites. All pathogens can be dangerous‚ but two of them are more dangerous. These two types that more dangerous are fungal and bacterial. While both fungal and bacterial pathogens cause illness‚ they differ in the way they are transmitted‚ the way they are treated‚ and the diseases they cause. First‚ the way fungal and bacterial pathogens are transmitted is different. Most fungal pathogens
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1. Describe the process of nociception using the four phases of: Transduction: occurs when a noxious stimulus in the form of traumatic or chemical injury‚ burn‚ incision‚ or tumor takes place in the skin‚ as well as somatic and visceral structures. Transmission: second phase the impulse moves from the level of the spinal cord to the brain. Perception: indicates the conscious awareness of a painful sensation. Modulation the pain message is inhibited. 2. What is the difference between nociceptive
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the effectiveness of different brands of hand soap in killing Escherichia Coli. I did this by creating dilutions of Escherichia Coli in varying concentrations of different brands of hand soap. They were allowed to incubate until bacterial growth occurred and then the bacterial density was determined by an OD600 test in a spectrophotometer. The data suggests that higher concentrations of soap are needed for greater effectiveness in killing bacteria. Also‚ the data shows that certain hand soaps were more
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Assignment no. 2 Ujjwal Dahiya Electronic sensors Sensors are sophisticated devices that are frequently used to detect and respond to electrical or optical signals. A Sensor converts the physical parameter (for example: temperature‚ blood pressure‚ humidity‚ speed‚ etc.) into a signal which can be measured electrically. Classification based on property is as given below: Temperature - Thermistors‚ thermocouples‚ RTD’s‚ IC
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Prokaryotic Cell Structure Bacterial Cell Structure Mariana Ruiz Villarreal/Wikimedia Commons Prokaryotes are single-celled organisms that are the earliest and most primitive forms of life on earth. As organized in the Three Domain System‚ prokaryotes include bacteria and archaeans. Prokaryotes are able to live and thrive in various types of environments including extreme habitats such as hydrothermal vents‚ hot springs‚ swamps‚ wetlands‚ and the guts of animals. Prokaryotic Cell Structure
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decolorizing activity by an effectual bacterial isolates‚ liquid medium was used. Based on the relative aptitude of the decolorization of diverse isolates‚ three most excellent performing bacterial isolates (1‚ 2 & 3) with more than 90% of decolorizing activity were preferred for more experiments (Data not shown). 3.1 Biodecolorization of Remazol Black-B by selected bacterial isolates Microbial decolorization of Remazol Black-B by the most promising selected bacterial isolates (1‚ 2 & 3) was corroborated
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002141-0012 Nuba Jackson IB Biology Microbiology IA How effective is Lysol in the reduction of bacterial growth compared to Pinesol in reduction of E. Coli growth in agar at room temperature? Background Information: Pinesol and Lysol are both common household disinfectants that make very big commercial claims; both claim to kill 99.9 percent of bacteria. Lysol contains
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