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Gromphadprhina Metabolic Rate

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The investigation is of the standard metabolic rate of the Madagascar hissing cockroaches (Gromphadprhina portentosa), with a difference of temperatures between two tests and if effect of the temperature changes the standard metabolic rate (SMR) of the cockroaches. The experiment was designed to determine if the SMR of the cockroaches would change based upon whether they were surrounded by different temperatures in their environment. The definition a SMR is the lowest metabolic rate required for the survival of an organism. It is measured when the organism is resting. Metabolic rates are expressed micro moles of carbon dioxide produced per sec (μmol CO2/sec) and CO2 produced per individual milligram of tissue per second (μmol CO2/mg/sec) (Hadow et al. 2015). The measurements of metabolic rates are taken because it plays a key role in different types of physiology, providing energy required to continue with growth and reproduction measured through qualitative and quantitative data, and an ecological role in which the metabolic rate affects territory preferences and foraging behaviors of the animal (Hadow et al. 2015). The Madagascar hissing cockroach gets it name form the hissing sound it produced by expelling air through their spiracles as a defense mechanism. The female cockroaches can be …show more content…

The organisms have multiple opening in the exoskeleton called spiracles allowing for a flow of air into the organism. These spiracles are located on each of the different segments of the animal’s thorax and abdomen. The spiracles then lead to the animal’s tracheal tubes. The tracheal tubes then branch off and allow air to come in contact with the cell and body fluids inside of the animal (Hadow et al. 2015). The spiracles on open and close together during ventilations, while the air goes in through the thoracic spiracles and expelled from the abdominal spiracles. (Heinrich et al.

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