A medical company has developed a product that contains an enzyme that helps lactose intolerant individuals digest the sugar lactose, which is found in many dairy products. The company would like to know the ideal temperature at which to store this new medication. Based on the data displayed in the graph, at which temperature would you suggest the pharmaceutical company store the medication and why? A The medication should be stored in an ice container because the data shows that the enzyme resists denaturing at colder temperatures

B The medication should be stored at room temperature because the enzyme has most effectively catalyzed the reaction at this temperature

C The medication should be stored in warm water because the heat from the water sped up the rate of the reaction to its optimal level

D The medication should be stored in hot water because the reaction took the least amount of time to convert the substrate into the product

Archeologists have discovered three sites showing conclusive evidence for the mastery of fire in tanzania, from a period slightly after the time that homo habilis was present in africa. these sites clearly were founded by homo erectus, the descendent species of homo habilis that migrated north, out of africa and into asia. homo erectus was known to have mastered fire, from ample evidence at sites in asia. there is no reason to attribute mastery of fire to homo ergaster, the descendent species of homo habilis that remained in africa. which of the following is an assumption on which the argument depends? (a) before their migration, homo erectus occupied african territory as far south as tanzania.(b) the strain of migration provided the selective pressure motivating homo erectus‘ mastery of fire.(c) homo ergaster would not have derived as much benefit from the mastery of fire as did homo erectus.(d) homo ergaster inherited all cultural knowledge from homo habilis, a species that did not have mastery of fire.(e) homo ergaster did not occupy regions as far south as tanzania until well after the time of these three sites.