Which of the following statements regarding the heart is NOT TRUE? a.
It is situated between the lungs in the thoracic cavity.

b.
Your heart is approximately the size of your fist.

c.
Approximately 2/3 of its mass lies to the right of the body’s midline.

d.
The apex of the heart rests on the diaphragm.

e.
The base is where major blood vessels enter and exit the heart.

your answer is true

i am 100% sure

explanation:

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.