Energy transformations result in ________ in entropy.
an increase
a decrease
no change
an increase
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Contracting the right sternocleidomastoid muscle would
A. hyperextend the head. B. lower the head. C. rotate the head toward the right. D. raise the head. E. rotate the head toward the left.
A molecule composed of two atoms of the same element, such as fluorine (Fl2), can be formed by a polar covalent bond.
Answer the following statement true (T) or false (F)
Answer the following statements true (T) or false (F)
1. White blood cells are produced through the action of colony-stimulating factors. 2. Hemoglobin is made up of the protein heme and the red pigment globin. 3. Each heme contains an atom of iron and can transport one molecule of oxygen. 4. Each hemoglobin molecule can transport two molecules of oxygen. 5. Diapedesis is the process by which red blood cells move into tissue spaces from the interior of blood capillaries.
When acetylcholine binds to receptors at the motor end plate, the end plate membrane becomes
A) more permeable to sodium ions. B) less permeable to sodium ions. C) more permeable to calcium ions. D) less permeable to potassium ions. E) repolarized.