The enzyme carbonic anhydrase is a protein that binds to two small molecules: water and carbon dioxide. by holding the two molecules in the proper position, the enzyme allows the two molecules to react to form a product, carbonic acid. the enzyme then releases the product and becomes available to catalyze the same reaction once again.

how does carbonic anhydrase change the reaction between carbon dioxide and water?

a. it increases the total energy released.
b. it alters the structure of the product.
c. it decreases the activation energy.
d. it decreases the total mass of the system.

Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10