Answer:
The correct answer is d. circulatory, nervous, urinary, and endocrine systems
Explanation:
Many organ systems together helps in regulating the blood pressure in the body. For example, in the case of stress, the autonomous nervous system helps in raising the heart rate that increases blood pressure in arteries and veins.
Circulatory system contains blood vessels, blood and heart and heartbeat and blood vessel thickness changes with the change in some endocrine hormone levels like cortisol, adrenalin which regulates the blood pressure.
The urinary system helps in the regulation of blood pressure by filtering water from blood. Therefore circulatory, nervous, urinary, and endocrine systems work together and regulate blood pressure.
Answer: Self - righting
Explanation:
The self righting concept is the process whereby a person either a child or an adult tries to correct or improve a situation that is crucial to their development.
Self righting concept is Inborn and it can lead to the development of essential cognitive abilities and creativity in the child or adult.
An eye is a body part that can be spelled forwards and backwards :)