Final answer:
The endocrine and nervous systems work together to regulate body functions and maintain homeostasis in humans.
Step-by-step explanation:
The coordination systems, specifically the endocrine and nervous systems, play important roles in maintaining humans as functioning organisms by working together to regulate body functions and maintain homeostasis.
The nervous system controls various body activities through the generation of action potentials along neurons, while the endocrine system releases hormones that travel through the blood to target cells, influencing their activities.
For example, the autonomic nervous system controls involuntary body functions like heart rate and digestion, while hormones secreted by the endocrine system regulate growth, metabolism, and reproduction.