The bacteria in this petri dish are growing on a gel that provides nutrients. A population of bacteria can double in
size every 20 minutes
A lack of which to resources is least likely to slow the reproductive rate of
these bacteria

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.