The first sentence of a body paragraph is called the .

The topic sentence is the first sentence of a paragraph

Explanation:

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usually, a falcon can kill an owl, and horses don't normally eat each other.

major league baseball

explanation:

jack roosevelt robinson broke the color barrier in major league baseball.as he was the first african american to play in the major leagues, jackie robinson became the target of racial abuse. jackie robinson is referring to the historic event, harlem riot.