Muscle cells
A) actively lengthen.
B) generate compression.
C) possess a mechanism that regulates the tension amount by changing the number of contracting sarcomeres.
D) vary tension production based on the amount of sodium ions bound to actin.
E) can only contract
E) can only contract.
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A) leaves a blind spot anterior to the nose and in the lateral fields of vision B) is essentially a waste of brain processing for what is essentially the same image C) gives us higher visual acuity for small detail by doubling the number of photoreceptors that are being stimulated D) allows us to subconsciously estimate the distance of objects based on the different angles the image strikes our two retinas
The number of fat cells does not change, but the amount of stored lipid does vary with the nutritional status of the animal
Indicate whether the statement is true or false
The mass of an atom is the sum of its protons and electrons
Indicate whether the statement is true or false.
Mike has difficulty breathing when he's experiencing cold-induced asthma due to a change in which of these physical factors?
A. alveolar surface tension B. lung compliance C. lung elasticity D. airway resistance