The heart indents into the __________ of the left lung.
A. oblique fissure
B. hilum
C. apex
D. cardiac impression
E. base
D. cardiac impression
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An element's atomic number is determined by the number of __________ in one atom of that element.
A. protons ?B. nuclei ?C. electrons ?D. neutrons ?E. atomic mass units
Which of the following is a correct unit of inertia?
A. psi B. kg/m3 C. lb/ft3 D. none of the above
What hormone reduces blood pressure and blood volume by inhibiting nearly all events that promote vasoconstriction and sodium ion and water retention?
A) ADH B) aldosterone C) atrial natriuretic peptide D) thyroxine
Identify the correct sequence for the steps of meiosis I
A) Telophase I - anaphase I - metaphase I - prophase I B) Prophase I - metaphase I - anaphase I - telophase I C) Interphase - mitosis - meiosis D) 46 chromosomes, 23 chromosomes, then 46 chromosomes