Choose one answer to this question: In MLA, a writer is required to cite each source twice: Where?

In an MLA academic essay, how may times is a writer is required to cite each source borrowed from? [BLANK-1].

The ________ states that two species cannot exists in an environment and use the exact same resources. 

What is a foundation species?

Why do traits closely tied to fitness, like clutch size in birds, often show low heritability?

A 58-year-old woman revealed she had experimented with intravenous drugs as a teenager. Is she an acceptable donor?

A stream of equal cash payments made at equal time intervals is called a(n) ________.

The amount of money that the patient must pay each year for services before the insurance company begins to pick up the payments is called: 

What type of payments do patients with HMO insurance usually make to their providers?

Atlantis Corporation has 17,000 shares of 13%, $77 par noncumulative preferred stock outstanding and 23,000 shares of no-par common stock outstanding. At the end of the current year, the corporation declares a dividend of $184,000. How is the dividend allocated between preferred and common stockholders?