Psychologists who adopt a(n) perspective look for a physical cause for a particular behavior.

Psychologists who adopt a Biological perspective look for a physical cause for a particular behavior.

Explanation:

The biological perspective also known as Biopsychology, that is the principle of biology which is essential to the research and study of behavorial and mental processes of the human mind. The subfields of biological psychology are neuropsychology, behavioral psychology, and cognitive psychology.

Through this, one can learn and know about the developmental, physiological, and genetic mechanism of behavior in people and animals alike. Those psychologists that adopt a biological perspective look for a certain physical reason for specific behavior.  

answer; the importation of slaves from africa,//   is the correct answer.

- "sack of constantinople, (april 1204). the diversion of the fourth crusade from the holy land to attack, capture, and pillage the byzantine city of constantinople divided and dissipated the efforts of the christians to maintain the war against the muslims. the fourth crusade was corrupted from its purpose early on."

- "the crusades were a series of religious wars undertaken by the latin church. the first crusade arose after a call to arms in 1095 sermons by pope urban ii. the first crusade unleashed a wave of impassioned, pious catholic fury, which was of constantinople, the capital of the christian-controlled byzantine empire."

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