Is the structure of pancreatic lipase the same as gastrin (produced in the stomach) lipase?

Both pancreatic lipase and gastric lipase have the same function; in that both enzymes are used in the hydrolysis of triglycerides into fatty acids and monoglycerides. However, these two enzymes have different structures; this is because each of these two enzymes  deal with different pH levels, and they are substrate specific.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.