A reflex arc with single synapse (integrating center) is a monosynaptic reflex arc.
Explanation:
A reflex arc consists of sensory neurons, motor neurons, integrating center, sensory receptors, and effectors.
A monosynaptic reflex arc is the one that consists of only a single synapse in the central nervous system. This means that the whole monosynaptic reflex arc has only one synapse between single sensory and motor neurons.
C) Unregulated hunting could lead to species becoming endangered.
unregulated hunting could lead to species becoming endangered. Regulating hunting ensures that the species will not experience too much of a population decline.