Most chemical digestion occurs in the:a

stomach.
b. ileum.
c. jejunum.
d. duodenum.
e. colon.


D

Biology & Microbiology

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Methanogens are classified as ____

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During a skeletal muscle contraction ATP energizes ____

a. myosin b. actin c. Z lines d. sarcomere e. ADP

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The processor of phosphorylating amino acid residues on both sides of the cytoplasmic tail of a receptor for tyrosine kinase is known as ___ .

a. transphosphorylation b. phosphorylation c. cleavage d. none of the above

Biology & Microbiology