Which of the following statements concerning structures of the spinal cord is false?

A) The dorsal root of the spinal cord conveys sensory (afferent) nerve impulses to the spinal cord.
B) The posterior horn of the cord contains the cell bodies of motor neurons.
C) The ventral root is formed by the axons of neurons in the lateral and anterior horns.
D) The dorsal and ventral roots unite to form spinal nerves.
E) The ventral root of the spinal cord conveys motor (efferent) nerve impulses away from the spinal cord.

Which of the following is correctly associated with the medulla oblongata?

A) It gives rise to conscious thoughts.
B) It contains nuclei for regulation of heart rate and blood vessel diameter.
C) It contains enlargements called cerebral peduncles.
D) It is the most superior portion of the brainstem.
E) It relays sensory information.

If A → B → C → D → E represents a metabolic pathway, then the letter E would be

A) a substrate.
B) a product.
C) energy.
D) an enzyme.
E) an enzyme-substrate complex.

In slash-and-burn agriculture, the yield from the first crop is usually quite high.

Proponents of deregulating the NLRA believe workers prefer a system of individual, rather than collective, representation.

Which of the following statements regarding PTH (parathyroid hormone) is true?

A) PTH causes decreased uptake of Ca²⁺ from the small intestine.
B) PTH causes decreased vitamin D formation in the kidneys.
C) PTH causes increased reabsorption of Ca²⁺ in the kidneys.
D) PTH causes increased loss of Ca²⁺ from the kidneys.
E) PTH causes increased Na⁺ reabsorption in the kidneys.