The sum total of all the roles an organism plays in a habitat is referred to as its? By: Sunday|Published on: Apr 27|Categories: Biology NECO| 0 comments A. ecology B. ecosystem C. habit D. habitat E. niche Correct Answer: Option E – niche Users Also Read These:The sum total of all observable features of an organism is?The activity of an organism which affects the…The inability of an organism to adapt to its habitat…The influence of soil on organisms in a habitat is…The sum total of adaptive changes from pre-existing…SEE ALSO A situation in which the African king fish encases itself in a cocoon; mud and mucus until the next rainy season is called?