Endothermic

as small to medium sized animals. Occurring to some paleontologists they believe that Therapsids were cover with fur. Some of the characteristics were fewer bones in the skull and enlarged lower jawbones. Scientist think that Therapsids “were endothermic or warm blooded, enabling the to maintain a constant internal body temperature.” (Chapter 13) this helps them expand any habitats. But everything was about to be exterminated. The event of Permian-Triassic exterminated 79 percent of the life…

The goal of this research was to conduct the mass-specific (MRMS) metabolic rate (oxygen consumption) for homeothermic endothermic female mice (Mus musculus) depending on their body mass and temperature of their environment. Mice were first weighed and then placed into 250mL chambers. The aquatic environments surrounding the chambers were acclimated to temperatures of 10°C, 15°C, 20°C, 25°C and 30°C. The effects of temperature and mass on metabolic rate of the female mice were measured by…

To improve the yield of the ester the reaction should be heated using a high temperature. This would favour the formation of the products in this reaction, as the formation of an ester (esterification) is an endothermic reaction. Thus use of a high temperature will push the equilibrium to the right hand side, and a larger yield of the ester will be produced. To improve the yield of the Ester the reaction mixture could be refluxed for longer period of time so that more reactants are converted…

Throughout the history of life, organisms have been in a constant evolutionary flight to adaptations that better suit their surroundings, while becoming more complex in nature and achieving evolutionary hallmarks in the process. One such evolutionary leap is the transition from aquatic environment to terrestrial. One of the early terrestrial animals, the primitive amniotic synapsids are an important group of animals that pawed the way for endothermy, a significant adaptation that helped animals…

Following WHMIS, it is vital that safety be a priority when conducting labs. Especially when handling chemicals, the ideal setup of labs should avoid any obstructions and potential hazards that may occur. This is due to the possible dangers: flammable and combustible chemicals (alcohol, sodium), oxidation (hair dye), bio hazardous products (which causes AIDS, rabies), toxic items (lead, benzene), poison (carbon monoxide), corrosive compounds (bleach), dangerously reactive chemicals (fluorine)…

Identification of a Liquid Objective This experiment was performed out to determine the identity of an unknown liquid sample by investigating its solubility in water, hexane and ethyl alcohol. Also, its density and boiling point were obtained and compared to the theoretical values. Theory Chemical substances can be identified through investigation of their chemical and physical properties and then comparing the experimental values to the standard values. Physical properties do not change the…

with having these two attributes, it is bilaterally symmetrical and also possesses a dorsal,tubular nerve cord and a postanal tail. It lies in the class Mammalia because it possess hair which is made of keratin, the hair provides insulation. It is endothermic (the majority of the heat energy is used to maintain their high body temperature). It has a 4 chamber heart. They also have mammary glands that are used to produce milk to nourish their young. Their diaphragm is a muscle that separates the…

• The heat (q) “lost” or “gained” is related to a) sample mass b) change in T and c) specific heat capacity Specific heat capacity = heat lost or gained by substance (J) (mass, g)(T change, K) © 2006 Brooks/Cole - Thomson 11 Change in Temperature (T) ∆T of System Increase Sign of ∆Tsystem + Tfinal >Tinitial Tfinal < Tinitial Sign of q + Direction of Heat Transfer Heat transferred from surroundings to system (_____thermic) Heat transferred from system to surroundings (_____thermic)…

substance during its formation. The amount of energy that may be absorbed or released when a chemical reaction takes place is known as the change in enthalpy (ΔH). If a reaction absorbs heat, then it will be positive number and will be called an endothermic reaction. If a reaction releases heat, then it will have a negative number and will be called an exothermic reaction. Knowing the enthalpies of reactions can be useful since it allows humans to make products such as hand warmers which require…

In this experiment, the Law of Conservation of Mass was illustrated by performing a series of 5 reactions, including a precipitation reaction, a decomposition reaction, two redox reactions, and an acid base reaction on a copper wire, called the Copper Cycle. The initial and final mass of the copper were measured and percent recovery was calculated to demonstrate that mass wasn’t created or destroyed. The balanced equations, balanced formula-unit equations, total ionic equations, net ionic…