Which of the following conversions is accurate?
A. 2.54 cm = 1 in
B. 2.54 in = 1 cm
C. 4.45 lb = 1 N
D. none of the above
A. 2.54 cm = 1 in
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The olfactory foramina are found in which of the following bones?
A) ethmoid B) sphenoid C) temporal D) nasal E) zygomatic
Which of the following statements regarding blood capillaries and lymphatic capillaries is not true?
A. Both lymphatic and blood capillaries reabsorb fluid from tissue spaces. B. Lymphatic capillaries are closed at one end, unlike blood capillaries. C. Bacteria and lymphocytes may move into lymphatic capillaries through gaps between cells. D. Both lymphatic and blood capillaries are lined with endothelium. E. Endothelial cells of both blood and lymphatic capillaries are joined by tight junctions.
A cell which uses an organic carbon source and obtains energy from light would be called a(n):
a) photoautotroph b) chemoautotroph c) photoheterotroph d) chemoheterotroph
True or False? Autocrine chemical messengers affect cells in close proximity to the secreting cell and paracrine chemical messengers affect cells that are located a greater distance from the secreting cell.
Answer the following statement true (T) or false (F)