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The Number (In Millions) of U

question 123

Multiple Choice

The number (in millions) of U.S. cellular telephone subscribers can be described by The number (in millions) of U.S. cellular telephone subscribers can be described by , where x is the number of years past 1990. For years beyond 2010, does this graph increase or decrease? (Look at this graph in a window that includes these years.) A) increases B) decreases , where x is the number of years past 1990. For years beyond 2010, does this graph increase or decrease? (Look at this graph in a window that includes these years.)

Definitions:

Chordates

Animals that at some stage of development have a notochord, a dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail, comprising all vertebrates and several closely related invertebrates.

Exoskeleton

A rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.

Echinoderm

A phylum of marine animals known for their radial symmetry and unique water vascular system, including starfish and sea urchins.

Evolutionary Relationships

The connections among different species or organisms that can be traced back to a common ancestor, explored through genetics, physical characteristics, and other biological data.