A Reason That New Guinea Was Never Home to Large

question 31

Multiple Choice

A reason that New Guinea was never home to large centralized states is because of

• A) the wide variety of crops grown in different locations there.
• B) the few crops that can be grown there.
• C) the poor soil that led to small populations.
• D) the failure of the people of New Guinea to adopt agriculture.

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Definitions:

Receptor Sites

Specific locations on cell membranes or within cells where particular molecules, such as hormones or neurotransmitters, can bind and elicit a physiological response.

Plasma Membrane

The plasma membrane is the biological membrane that separates the interior of all cells from the outside environment, controlling the movement of substances in and out of cells.

Symporter

is a type of transporter protein that moves two or more ions or molecules in the same direction across a cell membrane.

Plasma Membrane

The lipid bilayer membrane surrounding a cell, controlling the passage of substances in and out of the cell.