Which of the Following Technologies Is Recognized as the Primary

question 52

Multiple Choice

Which of the following technologies is recognized as the primary engine behind the communications revolution of the nineteenth century?

• A) the telephone
• B) the telegraph
• C) radio
• D) trans-Atlantic mail

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Definitions:

Primary Xylem

The part of the xylem (the vascular tissue in plants that conducts water and dissolved nutrients upward from the root) that forms first, mainly in seedlings and young plants.

Secondary Xylem

The part of a plant that contributes to the growth of stem thickness and acts as a conduit for water and nutrients.

Maturation

The process of achieving a fully developed or final state, whether in biological, psychological, or social terms.

Elongation

The stage in DNA replication and protein synthesis where the DNA or the polypeptide chain is lengthened by the addition of new nucleotides or amino acids.