Answer:
A. Filtering Blood to Remove Unwanted Waste
Explanation:
Excretory system is comprised of Kidneys, liver, lungs and skin.
Answer:
respitory circulatory systems
Explanation:
Answer:
Severe deficiency, called pellagra, can cause symptoms related to the skin, digestive system, and nervous system.
Explanation:
Parkinson's disease is a deficiency of the neurotransmitter dopamine. Dopamine is responsible for how the brain deals with stress, especially the fight-or-flight response. Thus, it affects greatly on the movements of the body. Also, dopamine is responsible for information processing. That is why people with Parkinson's disease have trouble in retaining their memories or be in deep concentration.
