Daphnia’s heartbeat. This is to understand the affect of caffeine on a human’s heart rate and the use of daphnia keeps the experiment fair and safe. Background Research: Daphnia – Daphnia (water fleas) are grouped as crustaceans under the arthropod group of Kingdom Anamalia. They have an open circulatory system where fluid (there is no distinction between blood and nutritional fluid) in the hemocoel delivers oxygen and nutrients to the organs/ cells directly meaning caffeine enters their system
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1) Natural VS Logging areas The results of the diversity index analysis show that the NF area is the highest (H’ = 1.57). The minor is the MD area (H’ = 1.55) and the HD area (H’ = 1.37)‚ respectively. The LD area is the lowest (H’ = 1.35). This is consistent with Edward et al.’s report (2011) who studied about degraded lands that are worth protecting: the biological importance of Southeast Asia’s repeatedly logged forests found logging had little effect on the overall richness of birds in the once-logging
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used in this article for rating the various natural disasters. The statistics cover the years from 1970-2005. 10).Insect Infestation (1%) As Wikipedia defines; the term “infestation” refers to parasitic diseases caused by animals such as arthropods (i.e. mites and ticks)‚ lice‚ and worms but excluding those caused by protozoa‚ fungi‚ and bacteria.In simpler words it is the spreading or swarming in of various kinds of insects over or in a troublesome manner.This disaster results in anxiety
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Chapter 1 Answers QUICK-CHECK questions 1 What are the special characteristics of the light produced by a synchrotron? In a synchrotron‚ electrons are accelerated to very high speeds (almost the speed of light). Light is created when the direction of movement of these electrons is changed (deflected) using magnetic fields. A characteristic of this light is that it is extremely bright. 2 a Explain why ice is less dense than water. Ice is less dense than liquid water because‚ as water solidifies
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Wastewater Wastewater is any water that has been adversely affected in quality by anthropogenic influence. It comprises liquid waste discharged by domestic residences‚ commercial properties‚ industry‚ and/or agriculture and can encompass a wide range of potential contaminants and concentrations. In the most common usage‚ it refers to the municipal wastewater that contains a broad spectrum of contaminants resulting from the mixing of wastewaters from different sources. Sewage is correctly the
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Living organisms are composed of part water and part chemicals. The chemicals that help make up life are constructed mainly of carbon. A compound that has carbon in its composition is called an organic compound. Organic compounds also usually contain hydrogen atoms. Even though life is very complex‚ all large molecules that make up life are categorized into four large classes: lipids‚ protein‚ carbohydrates‚ and nucleic acids. These four molecules are known as macromolecules‚ due to their large size
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Re-emerging and emerging diseases especially those related to viruses all through history have comprised of the most feared plagues of the past. Although new infections continue to emerge today‚ many of the old plagues are still with us. (1) “Emerging” diseases can be defined as diseases / infections that have newly appeared in a population or have existed but are quickly increasing in geographic range or incidence. Among recent examples are Lyme disease‚ Hantavirus pulmonary syndrome‚ HIV/AIDS
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Chapter 2 REVIEW OF RELATED LITERATURE AND STUDIES Related Literature Spider silk (Parasteatoda tepidarium) commonly known as agiw in Filipino‚is a material spun by varieties of spiders.Spider silk has a unique combination of mechanical strength and elasticity that makes it one of the toughest materials we know.(Arizona State University‚2013). Furthermore‚silk consists of very repetitive blocks of mainly glycine and alanine.These are the simplest and smallest amino acids allowing strands to be packed
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Biology notes The search for better health Discuss the difficulties of defining the terms ‘health’ and ‘disease’ - Disease is any condition that impairs normal living processes and is recognised by the presence of specific symptoms - Many diseases are best understood as a disturbance of homeostasis - Health is a state of complete physical‚ mental and social well-being and not merely the absence of disease or infirmity - ‘Health’ and ‘disease’ are not always easy terms to define - For example‚ someone
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although not all of them are native (1). Woodlouse is a crustacean‚ which fit into the class of arthropods‚ crustaceans are primarily aquatic animals. It is for this reason that woodlice become dehydrated in dry conditions‚ and their outer shells aren’t waterproof (1). Therefore damp environments are preferable for woodlouse to survive. The structure of woodlice are similar to all arthropods‚ the body is split up into segments‚ with an exoskeleton and jointed limbs. Firstly‚ the head and
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