Nearly all fish and shellfish contain methyl mercury.

a. true
b. false


Ans: a. true

Anatomy & Physiology

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The collecting ducts and distal convoluted tubules

A. collect filtrate from Bowman capsule. B. actively transport Na+ but not Cl?. C. do not alter their permeability to water. D. vary in their permeability to water relative to the amounts of ADH present. E. reabsorb glucose.

Anatomy & Physiology

 The figure illustrates a detailed drawing of the neuromuscular junction. What does "C" represent?

A. Sarcolemma B. Presynaptic terminal C. Synaptic vesicles D. Synaptic cleft E. Postsynaptic membrane

Anatomy & Physiology

Depolarization of the cell membrane occurs when there is a rapid influx (inflow) of

A. potassium ions. B. chloride ions. C. calcium ions. D. sodium ions. E. amino acids.

Anatomy & Physiology

Examination of a tissue sample from the central nervous system reveals many darkly pigmented cells. This tissue probably came from the

A) nucleus gracilis. B) nucleus cuneatus. C) motor cortex. D) substantia nigra. E) red nucleus.

Anatomy & Physiology