Which systems are interacting when you have small hairs in your nose that prevent foreign particles from entering the nasal passage?

Which systems are interacting when the hormone insulin is released by the pancreas and is carried throughout the body by the blood?

Which systems are interacting when it's hot outside and your skin releases sweat to prevent you from overheating?

Which systems are interacting when the brain stimulates a fever in response to an infection.

Which systems are interacting when the muscles in the esophagus contract to move food to the stomach?

Which systems are interacting when wastes are filtered from the blood and are excreted from the body as urine?

Which systems are interacting when the bone marrow produces white blood cells, which fight infection?

Which systems are interacting when calcium is absorbed through our diet and used to strengthen bones.

Which systems are interacting when hormones such as testosterone and estrogen are released during puberty.

Which systems are interacting when the brain regulates the position of bones by controlling the muscles.

Which systems are interacting when you touch a hot stove and your spinal cord stimulates a reflex that moves your hand away from the heat source.