Cutinase is a naturally occurring stereospecific catalyst capable of degradation of poly(ethylene terephthalate) (PET). As a result, cutinase is more frequently being used to degrade plastics found in various waste streams. In an effort to develop a new degradation protocol that requires the use of elevated temperatures you are tasked with improving the thermostability of the enzyme. Describe the types of amino acid changes you would introduce into the structure of this enzyme and why you would do so while attempting to achieve this objective.

If scientists are wrong about earth's age based on radioactive material and the decay rates are really much faster, how would nuclear power plants be affected?

In which terrestrial biome can you find trees that produce cones instead of flowers and needles instead of leaves? have trees that produce cones instead of flowers and needles instead of leaves. the latitudes in this biome have evenly distributed precipitation throughout the year. is it high or low

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.