Which of the following is the symbol for an amino group?
A) -COOH
B) -PO3
C) -NH2
D) -AMO
E) -OH
C
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Select the sequence that best indicates the flow of blood through the kidney from beginning to end.
A. Renal artery, arcuate arteries, cortical radiate arteries, afferent arterioles, glomerular capillaries, efferent arterioles, peritubular capillaries, cortical radiate veins, arcuate veins, renal vein B. Renal artery, afferent arterioles, arcuate arteries, cortical radiate arteries, glomerular capillaries, peritubular capillaries, cortical radiate veins, arcuate veins, efferent arterioles, renal vein C. Interlobar artery, renal artery, arcuate arteries, cortical radiate arteries, afferent arterioles, glomerular capillaries, peritubular capillaries, efferent arterioles, cortical radiate veins, arcuate veins, renal vein D. Renal artery, afferent arterioles, cortical radiate arteries, arcuate arteries, glomerular capillaries, efferent arterioles, peritubular capillaries, arcuate veins, cortical radiate veins, renal vein
The membranes enclosing the thoracic and abdominopelvic cavities are __________ membranes.
Fill in the blank(s) with the appropriate word(s).
Neurulation is the development of the nervous system from the
A. endoderm. B. mesoderm. C. ectoderm. D. hypoderm.
Which of the following is true of the bony matrix of the skeleton as people age?
A) The proportion of collagen fibers in the matrix increases with age. B) Its composition remains constant throughout life. C) Its mineral content diminishes as a normal part of aging. D) It gains calcium carbonate while losing calcium phosphate. E) None of the answers are correct.