A protease enzyme is found in the stomachs of humans. it catalyses the breakdown of long chains of amino acids(proteins) into individual amino amino acid molecules. a)suggest the optimum temperature for the activity of this protease enzyme

b)the stomach contains hydrochloric acid. suggest the optimum pH for the activity of this protease enzyme

c)Explain why the rate of an enzyme_controlled reaction is relatively slow at low temperatures.

d)expalin why the rate of the reaction slows down above the enzyme's optimum temperature.​

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