CT Scans and MRI Scans Both Suggest That the Brains

question 455

Multiple Choice

CT scans and MRI scans both suggest that the brains of schizophrenics have shrunk, which may be due to the schizophrenic brain

• A)becoming more densely packed with aging.
• B)developing plaques and tangles.
• C)having abnormal brain chemicals that accumulate and cause neuronal death.
• D)being unable to continually create new neurons to replace old ones that have died.

---

Definitions:

Operating Income

The profit realized from a business's operational activities, calculated before interest and taxes.

Operating Leverage

A measure of how revenue growth translates into growth in operating income, indicating the degree to which a company can increase profit by increasing sales.

Variable Costs

Charges that shift in alignment with the volume of production or service tasks.

Operating Income

Earnings before interest and taxes (EBIT), a measure of a company's profit generated from its core operations excluding the effects of financing and taxes.