Which of the following is a correct statement about a simple epithelium?
a. All of the cells are in direct contact with the basement membrane.
b. It is designed for protection against mechanical abrasion.
c. It is formed from multiple layers of cells.
d. It may contain the protein keratin.
a. All of the cells are in direct contact with the basement membrane.
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Rising blood levels of aldosterone cause the kidney tubules to ________
A) reabsorb potassium ions B) reabsorb sodium ions C) reabsorb calcium ions D) reabsorb iodine atoms E) reabsorb hydrogen ions
What is taken up by the capillaries at their venous end?
A) Oxygen B) Organic nutrients C) Glucose D) Amino acids E) Waste products
Select the correct statement about equilibrium
A) The weight of the endolymph contained within the semicircular canals against the maculae is responsible for static equilibrium. B) Hair cells of both types of equilibrium hyperpolarize only, resulting in an increased rate of impulse transmission. C) Cristae respond to angular acceleration and deceleration. D) Due to dynamic equilibrium, movement can be perceived if rotation of the body continues at a constant rate.
If there is a drop of blood in the left internal carotid artery, which vessel would it enter next if it is going to the left eye?
A) Facial artery B) Left common carotid artery C) Occipital artery D) Left ophthalmic artery