Osmometer cells in the brain sense an increase in the salt concentration of plasma. This information is sent to the hypothalamus, which notifies the pituitary gland to release the hormone, ADH. ADH causes the kidney to save water, which lowers the salt concentration of the plasma. What characteristic of life does this overall pathway represent?
A. Cellular organization
B. Energy utilization
C. Evolutionary adaptation
D. Homeostasis
E. Sensitivity
Answer: D
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Which of the following correctly describes the path of fluid as it is filtered from the blood and flows through the nephron?
A. Bowman's capsule ? proximal convoluted tubule ? loop of Henle ? distal convoluted tubule ? collecting duct B. collecting duct ? Bowman's capsule ? proximal convoluted tubule ? loop of Henle ? distal convoluted tubule C. Bowman's capsule ? loop of Henle ? proximal convoluted tubule ? distal convoluted tubule ? collecting duct D. Bowman's capsule? distal convoluted tubule ? loop of Henle ? proximal convoluted tubule ? collecting duct E. collecting duct ? distal convoluted tubule ? loop of Henle ? proximal convoluted tubule ? Bowman's capsule
A major organism considered to cause food-borne infection is
A. Salmonella. B. Pseudomonas. C. Staphylococcus. D. Bacillus.
A linkage map illustrates the exact physical locations of genes on a chromosome
Indicate whether the statement is true or false
Which of these statements concerning the normal pathway of blood flow is NOT correct?
A. from the pulmonary arteries to the lungs B. from the pulmonary veins to the right atrium C. from the aorta to all parts of body except lungs D. from the coronary sinus to the right atrium E. Neither from the pulmonary veins to the right atrium nor from the coronary sinus to the right atrium are correct.