Enzymes catalyze reactions by lowering the activation energy of the reaction. Enzymes are made of proteins, and therefore the answer here is B. Protein molecules.
Answer:
to deliver information about the physiological variable to the integrating center
Explanation:
The afferent or sensory neurons function in transmitting sensory information as action potential from the receptors to the CNS. It synapse with the inter neurons, at the spinal cord, for a bypass to the brain for mediation, The response from the brain is integrated (synapse with the efferent neuron) in the spinal cord and conducted by efferent or motor neuron to the effectors.
C is the answer
:) for your question (im writing extra cause answer is too small)
I think 10%...................