Which best describes the relationship between the circulatory system and the respiratory system?
a. the circulatory system is the transport system for the respiratory system.
b. the respiratory system is the transport system for the circulatory system.
c. the circulatory system diffuses red blood cells into the respiratory system to pick up oxygen.
d. the respiratory system transfers hemoglobin to the red blood cells of the circulatory system.

What effect do stimulants, such as cocaine, have on the nervous system? o a. stimulants change the activity of neurotransmitters. o b. stimulants mimic hormones and influence moods. o o c. stimulant|mchange how sensory information is processed. d. stimulants decrease brain activity.

What is one technique to a person get proper sleep? eat a heavy meal before bed. exercise intensely before bed. practice relaxation breathing before bed. use electronics before bed.

What hormones (at least three) are responsible for human growth and development and what do they do? describe what menstruation is and how it relates to reproduction. what are common emotional and physical challenges that arise during transition from child to adult? include and describe at least three challenges. what steps can you take to ease your own transition and be sensitive to others when they experience theirs? analyze the role of hormones in growth and development. how does this relate to your own personal health?