Which Statement Concerning the Change in Family Structures Over the Past

question 4

Multiple Choice

Which statement concerning the change in family structures over the past 40 years is true?

• A) The percentage of families headed by a married heterosexual couple has decline from 74 percent in 1960 to 50 percent in 2007.
• B) Almost 71% percent of American households in 2007 were headed by individuals living alone.
• C) Over 31% of households in 2007 contained unmarried partners.
• D) Nearly 27% of all households are interracial
• E) None of these choices

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Definitions:

Unicellular

Describes organisms made up of a single cell, which performs all necessary functions for life, such as bacteria and some algae.

Stramenopiles

A diverse group of eukaryotic organisms, including diatoms and brown algae, characterized by fine, hair-like structures on their flagella.

Biflagellate

Having two flagella, which are long, slender projections that provide locomotion to various cells and single-celled organisms.

Nanoplankton

Extremely minute (<10 μm in length) algae that are major producers in the ocean because of their great abundance; part of phytoplankton.