The Factors Of Temperature Affects A Tenebrio Molitor 's Activity Level

1119 Words Mar 22nd, 2016 null Page
In this lab, an experiment was done in order to test how the abiotic factor of temperature affects a Tenebrio molitor’s activity level. Both experiments conducted consisted of two separate treatment trials; one in a warm environment (25 C) and one in a relatively cold environment (14 C). Results obtained from these experiments both showed a higher level of T. molitor activity in warmer environments as opposed to the cold environment where less activity occurred. In this case, the activity level of a T. molitor was measured by distance travelled (cm) over one minute. Prior to preforming the experiment, the prediction was made; An increase in environmental temperature will lead to an increased activity level of T. molitor. This prediction was made based on the knowledge of T. molitor being ectotherms. This is because the temperature has been shown to have a major effect on an ectotherms growth rate and development rate, with higher temperatures being optimal conditions for both these to occur (Van Der Have & De Jong, 1996). Therefore, T. moltior require a warm environmental temperature to be active as the biological functions, growth and development, controlled by enzymatic reactions occurring only in proper environmental conditions (optimal temperatures). Both experiments showed the same relative trend of increased movement in a warm environment as opposed to decreased movement in a cold environment. Both trials had a much greater mean distance travelled over one minute in…

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