Reading Guide for Chapter 35 – The Vertebrates 1. What are the five features of the chordates? • A hollow dorsal nerve cord just beneath the dorsal surface of the animal. In vertebrates this differentiates into the brain and spinal cord. • A flexible rod called the notochord that’s on the dorsal side of the primitive gut in the early embryo‚ present at some developmental stage in all chordates‚ located just below the nerve cord. May persist in some chordates; in others‚ it is replaced by
Premium Fish Heart
inventions‚ however his biggest interest was in Geometry. In his lifetime not only was he was able to create a ton of helpful inventions‚ he also discovered how to find the volume of a sphere‚ determine the exact value of Pi‚ created the Principle of Buoyancy‚ and also created Scientific Notation (Powers of Ten). He took great pride in his work and there were times where he became so in depth with his work‚ he often forgot to bathe or eat and some would say his real hunger was to learn! Archimedes became
Premium Archimedes
container. Archimedes’ principles is an upward force on an object immersed in a fluid (a liquid or a gas)‚ enabling it to float or at least to appear to become lighter. If the buoyancy exceeds the weight‚ then the object floats; if the weight exceeds the buoyancy‚ the object sinks. It was Archimedes who first discovered buoyancy (also known as Archimedes’ principle). The buoyant force is equal to the weight of the displaced fluid. The Cartesian diver shows that air is compressable and water is
Premium Density Pressure
pursued to increase the gastric residence time of dosage forms by employing a variety of concepts. These systems have been classified according to the basic principles of gastric retention . 1.Floating Drug Delivery System‚ with low density providing sufficient buoyancy to float over the gastric contents. 2. Bioadhesive systems‚ enabling the localized retention of the system in the stomach. 3. Swelling and expanding systems‚ preventing transit from the gastric
Premium Medicine Alternative medicine Ayurveda
State the principle of triple beam balance A beam balance measures mass as opposed to weight‚ so the mass you weigh will be the same on the moon as it is on earth. Gravity is taken out of the equation‚ unlike a spring balance that measures weight and would measure an article to be 1/6 of the weight on the moon as it would be on earth using the same spring balance that relied on gravity. The principle is that of moment‚ or turning force/torque)‚ calculated by force x distance. Fundamentally‚
Free Force Mass Weight
g/mol``Group No: 1``Group Name: Alkali metal``Block: s-block``Period: 2``State: solid at 298 K ``Colour: silvery white/grey``Classification: Metallic``Boiling Point: 1615K (1342°C)``Melting Point: 453.69K (180.54°C)``Critical temperature: 3223K (2950°C)``Density: 0.534g/cm3``Discovery Information Who: Johann Arfvedson``When: 1817 Where: Sweden``Name Origin Greek: lithos (stone). "Lithium" in different languages.``Sources Lithium is widely distributed but does not occur in nature in its free form.
Premium Hydrogen
concentration. The change in viscosity is proportional to the change in concentration and polymer ratio. The buoyancy lag time in simulated gastric fluid (0.1 mol L-1HCL‚ pH 1.2) varied with the formulation variables. Formulation P1 exhibited the least buoyancy lag time (26 s) while formulation P6 exhibited the highest lag time (219 s) (Table 5.4) (Figure 5.1 and 5.2). The decrease in the buoyancy lag time of a formulation P1 can be attributed to the availability of an increase amount of carbon dioxide
Premium Polymer Calcium Square root
Calibration of Volumetric Glassware This set of laboratory experiments is designed to introduce you to some of the apparatus and operations you will be using during the remainder of this course‚ including the treatment of data using spreadsheets. While some of the procedures may seem trivial and the results obvious‚ this is a chance for you to develop good laboratory technique. Required Reading D.C. Harris‚ Quantitative Chemical Analysis (8th ed.‚ W. H. Freeman‚ NY‚ 2010) chapter 2 (Tools
Premium Mass Laboratory glassware Metrology
i Free Convection Cooling Variation in Terms of Position By Joseph Saba Rula Dahdal Wassim Naddi Submitted to Dr. Michel Daaboul A research paper submitted in partial fulfillment of the requirements of the course MECH 321 Heat Transfer Faculty of Engineering University of Balamand June 2012 Copyright © 2012‚ Joseph Saba‚ Rula Dahdal‚ Wassim Naddi All Rights Reserved ii ABSTRACT This research paper aims is to introduce a brief positioning on how we can enhance the
Premium Heat transfer Convection Heat
1. Be wary of the main storm hazards. Thunderstorm Hazards (lightening‚ hail‚ tornado‚ downpours of rain flooding‚ downbursts of air gustfronts Hurricane Hazards contain thunderstorms‚ storm surge/coastal flooding‚ high waves‚ coastal erosion 2. Describe the different types of lightning‚ how they form‚ and what happens when they strike something. Cloud-to-cloud lightening: occurs when voltage gradient within a cloud‚ or between clouds overcomes electrical resistance of air. Cloud-to-ground
Free Tornado Thunderstorm Storm