The heart produces a hormone that helps regulate the body's sodium levels and blood pressure.
Answer the following statement true (T) or false (F)
True
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The promoter sequence of nucleotides in a gene is present on both strands of the DNA molecule, allowing transcription of both strands.
Answer the following statement true (T) or false (F)
Graded potentials that arrive at postsynaptic neurons are called ________ if they make that cell more likely to fire.
Fill in the blank(s) with the appropriate word(s).
The intervertebral discs are formed of _____________
Fill in the blank(s) with correct word
Which of the following is an action of the sympathetic nervous system during stress?
A. It increases the ability to respond to situations where physical activity is required. B. It increases blood flow to the skeletal muscles and viscera. C. It inhibits blood clotting. D. It decreases ventilation of the lungs to save oxygen. E. It increases glycogen synthesis in the liver.