The Cyanobacteria Found in the Internal Mucilage-Filled Cavities of the Hornworts

question 74

Multiple Choice

The cyanobacteria found in the internal mucilage-filled cavities of the hornworts serve to

• A) provide structural support.
• B) produce carbohydrates.
• C) convert atmospheric nitrogen gas into a usable nutrient form.
• D) convert atmospheric carbon gas into a usable nutrient form.
• E) help get rid of metabolic wastes.

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Definitions:

Checks and Balances

A system that allows each branch of a government to amend or veto acts of another branch to prevent any one branch from exerting too much power.

President Veto

A presidential veto is the power of the president to refuse approval of legislation passed by Congress, which can be overridden only by a two-thirds vote in both the House and the Senate.

Congress

The United States federal government's legislative body, composed of the Senate and the House of Representatives.

Presumption of Innocence

The legal principle that one is considered innocent until proven guilty in a court of law.