Antibodies are not able to directly destroy invading organisms
Indicate whether the statement is true or false
T
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Which of the following is a genetically inherited condition that results from the lack of a lysomal enzyme that normally decomposes a type of glycolipid?
A. Spina bifida B. Microcephaly C. Multiple sclerosis D. Tay-Sachs disease E. Duchenne's muscular dystrophy
Urine moves from the kidneys to the urinary bladder through the ureters
a. by active transport b. passively by the force of gravity c. by peristaltic contraction of the smooth muscle of the ureters d. when the bladder empties, creating a negative pressure that pulls urine to the bladder e. when nephron collecting ducts apply hydrostatic pressure to push the urine along
If air temperature is higher than skin temperature, _______ becomes a means of heat loss through evaporation
A. sweating B. shivering C. fever D. chills E. vasoconstriction
When is the first sound of the heartbeat produced?
A. Beginning of ventricular diastole B. Beginning of ventricular systole C. Middle of atrial systole D. Beginning of atrial systole