What is the name of the nucleotide base substitute for thymine in DNA transcription and what is its purpose? adenine, to make the mRNA strand easily destroyed after use guanine, to make the mRNA strand stronger so it may be used many times uracil, to make the mRNA strand stronger so it may be used many times uracil, to make the mRNA strand easily destroyed after use

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.

What in scientific term why the salty popcorn causes this thirst