Name two challenges that scientists may encounter when they’re monitoring populations of organisms in the wild.

1 - Weather. If scientists are monitoring organisms in their natural environments, than the weather conditions may not be fit to their equipment, clothing, etc. For instant, if it was a rainforest where rain is common, a challenge would be to get good visuals on the organisms.

2 - Aggressiveness. If scientists were to monitor organisms that are new or that they know nothing about, they could unintentionally aggravate the organism or those around them in the wild. In this situation, the aggravation could lead to destruction of data or equipment and lead to a possible set up in the observation.

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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