The hardest biologically manufactured substance is enamel.
Answer the following statement true (T) or false (F)
True
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The ________ is the plasma concentration at which a specific compound will begin appearing in the urine
A) tubular maximum B) hydrostatic threshold C) blood colloid maximum D) osmotic pressure E) renal threshold
The membrane covering the axon is called the ________
A) neurolemma B) myelin sheath C) axolemma D) white matter
Which is a TRUE statement about smooth muscle?
A. Smooth muscle is striated. B. Smooth muscle does not have thick and thin filaments. C. Smooth muscle does not use troponin-tropomyosin to regulate cross-bridge activity. D. Changes in cytosolic calcium do not regulate cross-bridge activity in smooth muscle. E. The myosin in smooth muscle requires phosphorylation before it can bind to ATP.
The outermost lining of the heart is the fibrous pericardium.
Answer the following statement true (T) or false (F)