“Pulsation Rate of Blackworms” Antonio Cavazos Biology 1107- 102 (Tuesday 1:00 – 3:50) 04/ 07/ 2009 Jose Fierro Addison Rhudy I. Introduction For any animal that is too large and/or too complex a circulatory system is needed to obtain essential chemicals by the process of diffusion alone. A circulatory system transports nutrients‚ oxygen and other important chemicals to all body cells. This system have three components: circulating fluid‚ a heart or pulsating vessel in charge
Premium Blood Blood vessel Heart
Introduction The purpose of this experiment was to determine the rate law graphically from the rate of disappearance and the x y values also the specific rate constant (k). Activation energy was also determined‚ and the effect of catalyst was evaluated in the reaction between peroxodisulphate ion S2O82-‚ and iodide ion‚ I-. S2O82-(aq) + 3 I-(aq) --> 2 SO42-(aq) + I3(aq) The general expression for the rate law‚ given this overall reaction‚ is: rate of disappearance of S2O82- = k[S2O82-]m[I-]n Chemical
Premium Chemical reaction Reaction rate Chemistry
fiscal policy designers should opt for a flexible exchange rate system. Nations‚ however‚ which do not have such policy makers should opt instead for a fixed exchange rate system. When attempting to stabilize an economy‚ monetary policy is the most efficient weapon that policymakers possess (Weerapana‚ 2003). In other words‚ it is much simpler to enact monetary policy than fiscal (Weerapana‚ 2003). Some nations benefit from a fixed exchange rate system‚ however. Nations such as Brazil‚ Kenya and Turkey
Premium Inflation Bretton Woods system Monetary policy
-Drugs may be eliminated from the systemic circulation by different pathways such as through * Urine * Bile * Intestine * Saliva * Alveolar air * Sweat * Milk Kidney – Nephron Glomurelar filtration- Refer to book Order of rxn-it refers to the way in w/c the conc of a drug or reactant influences the rate of chemical rxn 1st order reaction -causes constant percentage of the drug to be lost per unit time -An elimination rate constant can be describe
Premium Time Rate equation Chemical kinetics
Heart Rate Experiment Introduction: The heart rate measures the contractions of your heart and is a requirement for life. The heart uses four chambers. The right and left-lower chambers are called ventricles‚ and right and left-upper chambers are called atria. These four chambers complete two cycles that replenish the tissues with oxygen and get oxygen from our lungs. The heart rate is measured in beats/ minute and a “beat” is when the lower chambers are (two ventricles) contract. This
Premium Artery Vein Heart
Lab#: 15 Title: Exercise/pulse rate Aim: To investigate the effect of exercise on the pulse rate Materials/ Apparatus: Stop watch Diagram: Procedure: 1. The three middle fingers were placed just behind the bottom of the wrist as indicated in the diagram in order to see if the pulse could be felt. 2. (a) If the pulse was not felt the three fingers were moved about until it could be felt. (b) Changing the hand also helped to find the pulse. 3. The number of pulsation
Premium Heart
Homeostasis of BP and Heart Rate A normal blood pressure can be identified by having a systolic pressure of around 120 and a diastolic pressure of around 80. This value is expressed as "120/80". A normal heart rate is expressed as the amount of times it beats in a minute; a normal adult heart rate is between 60-100 beats per minute (BPM). There is a relation between these two measurements‚ but they are stimulated by several different circumstances. The blood pressure is mainly affected
Premium Blood Artery Heart
effort to determine the causes or correlates of these high or low rates‚ answering the questions below (citing any data you find in these sources): a. Is there any consistent relationship between levels of education and homicide rates? I did Japan and there was no relationship with education and crimes. b. Is there any consistent relationship between economic indicators and homicide rates? If so‚ which ones? They had a low homicide rates because of the high surveillance of the Japanese population.
Premium Central Intelligence Agency Crime Japan
Heart Rate(bpm) __70____ Maximum Heart Rate (bpm)_220_____ -__18____= ____202__ Target Heart Rate (bpm)_202_____ -_70_____= _135_____ _135_____X __.5____=___66___+ __70____= ___136___ (lower) ___135___X __.85____=__114.7____+ __70____= ___184.7___ (upper) Part II Heart Rate after step/cardio test ____135_____ 3524250267970 Was this person within their target heart rate? (Please circle) Yes or No Participant #2: _______Savanah Spinter___________ Age___14_____Resting Heart Rate(bpm)
Premium Heart rate
ECON 364 Money & Banking Chapter 1‚ page 19‚ #20 chapter 2‚ page 50‚ #22 20. Much of the US government debt is held as treasury bonds and bills by foreign investors. How do fluctuations in the dollar exchange rate affect the value of that debt held by foreigners? The book states a strong dollar would benefit American consumers by making foreign goods cheaper‚ however this hurt American businesses and eliminated some jobs by cutting domestic and foreign sales of their products. A strong dollar
Premium Economics Finance Money