BIOLOGY QUIZTest Your Knowledge Of Biology With These QuizzesBiology Online Quiz for Kids and Adults #1. How Many insects Are There on Earth? Ten billion Ten trillion Ten million trillion 100 billion Work Harder#2. Is there a central processing Unit in the brain? Yes No Work Harder Previous FinishResultsWell Done. You Are Roaring Like A LionKeep Working. Slow & Steady Wins The Race START NEW
