How are the Hawaiian honeycreepers an example of adaptive radiation? There were a large variety of honeycreepers that first inhabited the island. They found many different niches, so they were all able to survive.

The honeycreepers that first inhabited the island were able to adapt as the island changed, so that population of birds was able to survive.

There was a diversification of honeycreepers (each with different beak shapes) to help fill various ecological niches.

not too sure but maybe in the hot springs.

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

your spelling is a little off : ]

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.