Of the Na+ filtered, ____________ % is normally reabsorbed
Fill in the blank(s) with correct word
99.5
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Which of the following statements is NOT true?
a. Taste and smell senses are highly variable in sensitivities among species. b. The intraspecies roles of olfaction are largely mediated by pheromones. c. Sensilla are specialized projections from the cuticle of insects and are involved in chemical sensing d. In humans, the cortical gustatory area is located in the temporal lobe. e. The modality for mammalian taste receptors is called a tastant.
The chordae tendineae
a. keep the AV valves from averting during ventricular systole b. hold the AV valves open during diastole c. hold the right and left ventricles together d. transmit the electrical impulse from the atria to the ventricles e. contract when the ventricles contract
What is a desirable (and healthy) result of exposure to ultraviolet rays from the sun?
A. A decrease in melanocyte activity B. Increased production of vitamin D C. Increased production of vitamin C D. Sunburn E. A deep bronze tan
The two main neurotransmitters of the autonomic nervous system are
a) nicotine and adrenaline. b) muscarine and acetylcholine. c) norepinephrine and muscarine. d) norepinephrine and acetylcholine. e) somatostatin and nicotine.