Which of the following are most likely to be actively secreted into the distal convoluted tubule?
A. K+
B. Cl?
C. Na+
D. Amino acids
E. Bicarbonate ions
Answer: A
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Color-blind individuals lack or have diminished numbers of ________
A) cones B) rods C) spirillum D) spirochete
The ________ lacks blood vessels and must be nourished by materials diffusing from blood vessels in the ________.
A. hypodermis; dermis B. dermis; subcutaneous tissue C. epidermis; subcutaneous tissue D. epidermis; dermis
Olfactory receptors send axons through the cribriform plate and synapse on neurons in the
A) medulla. B) thalamus. C) cerebral cortex. D) olfactory bulb. E) olfactory tract.
Match the following systems and organs:
A) Respiratory B) Endocrine C) Digestive D) Cardiovascular E) Urinary 1) Arteries, veins, heart. 2) Trachea, bronchi, alveoli. 3) Adrenal glands, pancreas, pituitary. 4) Esophagus, large intestine, rectum. 5) Kidneys, bladder, ureters