1. In Figure 1, which reaction requires more energy to start (higher activation energy)? 2. If Reaction 2 is a reaction without an enzyme present, which reaction would represent the same reaction with an enzyme present?

3. What is another name for an enzyme that helps speed up a reaction by lowering the activation energy?

Barbara is converting 78°f to degrees celsius. first, she subtracts 32 from 78. what is the next step?

Question 4 using myplate's daily food plant for 2000 kilocalories as a reference, the servings from the protein foods group in this menu are a. adequate overall, and consistent with the dietary guidelines 2010 recommendations. b. short 2 ounce equivalents. c. inadequate in terms of the recommendations for a 2000 kcal diet. d. adequate overall, but inconsistent with the dietary guidelines 2010 recommendations.

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.