The early change that the system makes in an effort to cope with an obstruction is that the stretch receptors in the bladder wall become hypersensitive. Urinary tract obstruction is a blockage that inhibits the flow of urine through the urinary tract, including the kidneys, ureters, bladder, and urethra. The blockage mat be partial or complete. In response to the obstruction the urinary system is capable of undergoing adaptive changes or responses to compensate for the obstruction.
Plants and animals are both "organisms" or "living organisms" if you prefer.
An organism is basically a group of different organs functioning together (hope this was the easiest way to explain it).
Hope it helped,
Happy study/ homework/ exam!
Answer:
Reflex arcs
Sensory neuron sends electrical impulses to a relay neuron, which is located in the spinal cord of the CNS. Relay neurons connect sensory neurons to motor neurons. Motor neuron sends electrical impulses to an effector. Effector produces a response (muscle contracts to move hand away).