In animals, organ development is far more complex and defined. Organs are parts of organ systems where total functions are carried out. Thus, excretion is handled by the kidneys, ureters, bladder, and urethra. The nervous system consists of the brain, spinal cord, and peripheral nerve network. Associated with the complexity and discreteness of the organ systems of animals is a far greater range of functions and activities than is found in plants.
How does the organ level of organization differ in plants & animals?
In animals, organ development is far more complex and defined. Organs are parts of organ systems where total functions are carried out. Thus, excretion is handled by the kidneys, ureters, bladder, and urethra. The nervous system consists of the brain, spinal cord, and peripheral nerve network. Associated with the complexity and discreteness of the organ systems of animals is a far greater range of functions and activities than is found in plants.