High-pressured blood in the ventricles ________.
Fill in the blank(s) with the appropriate word(s).
forces the semilunar valves open
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Which of the following is a correct unit of mechanical energy?
A. Joules B. Watts C. kg-m D. kg/m
The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of "D"?
A. Site of protein synthesis B. Contains digestive enzymes C. Directs cellular activities, contains DNA D. Major site of ATP synthesis when oxygen is available E. Outer boundary of cell, controls entry and exit of substances
Selective attention is facilitated, enhanced, and improved by way of the ___ of the brainstem, which acts as the origin point of neurons, which project to the cerebraal cortex and release ___ neurotransmitter(s)
A. pons, acetylcholine B. basal nuclei, dopamine C. hypothalamus, serotonin D. locus coeruleus, norepinephrine E. thalamus, melatonin
A high caffeine intake can affect PMS symptoms.
a. true b. false