Ascientist should not let their research and study be influenced by (can be more than one answer) ethnicity gender nationality religion

A scientist should never let their research and experimental study be influenced by ethnicity, gender, nationality, religion or any other external factor. Any external influence such as these may lead to bias in the experimental results and yield a conclusion that is incorrect. In general, experiments should be designed in such a way that eliminates such bias. 

Answerhave membrane-bound organelles;