The collecting system in the kidney is responsible for __________.
creation of the medullary concentration gradient
making final adjustments to the sodium ion concentration and volume of urine
absorption of nutrients, plasma proteins, and ions from the filtrate
active secretion and reabsorption of sodium ions
making final adjustments to the sodium ion concentration and volume of urine
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A prominent ridge on a bone is called a(n) ________.
A) condyle B) facet C) meatus D) crest E) trochlea
Molecules that are present in the membranes of gram-negative bacteria and are the best known PAMPs are called ________.
A. lipopolysaccharides (LPS) B. lymphokines C. complement D. interferon
________ mature in the thymus gland and release chemicals to destroy pathogens or activate other immune cells.
A. Neutrophils B. Monocytes C. T lymphocytes D. B lymphocytes
The rearrangement of connections at synapses, which occurs throughout life, is termed
A) synchronicity. B) plasticity. C) senility. D) elasticity. E) intelligence.