<span>Living things are biotic factors like a dog, fungi and trees
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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.
C. To gather and respond to information
The nervous system supplies information to the brain about its surrounding through sensory organs (via nerves), which then send the information to the brain via the spinal cord.
