The most important chemical regulator of respiration is
A) oxygen.
B) bicarbonate ion.
C) carbon dioxide.
D) hemoglobin.
E) sodium ion.
C) carbon dioxide.
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Most of the duodenum is in the anterior pararenal space.
Answer the following statement true (T) or false (F)
Vitamin ____ is also known as thiamine and is necessary for muscle and nerve function
a. A b. K c. B1 d. B12
Muscle soreness can be produced by which of the following?
A) damage to muscle fibers B) enzymes in the extracellular fluid commonly found within muscle C) collagen fragments in the extracellular fluid D) all of the above
What is the relationship between an atom and matter?
A) An atom is the smallest stable unit of matter, and matter is anything that takes up space and has mass. B) An atom is the largest stable unit of matter, and matter is anything that takes up space and has mass. C) An atom is a particle with a negative electrical charge, and matter is mass within a gravitational field. D) An atom is a chemical substance made up of two or more different elements in a fixed proportion, and matter is a pure substance consisting only of atoms with the same atomic number. E) An atom is the smallest stable unit of matter, and matter is a pure substance consisting only of atoms with the same atomic number.