Biology MCQs Explainer Video | educator explainer video made with ngram

About the video

This educator explainer video was made with ngram to walk through three rapid-fire biology multiple-choice questions and their answers. It covers what the Widal test detects (typhoid fever, not malaria, diabetes, or HIV), what activates Bt protoxin inside an insect (the alkaline pH of the gut), and how serum differs from blood (serum lacks clotting factors). Each question is posed and then answered in quick succession, designed as a short recall exercise for students reviewing core biology facts before an exam, ending with a prompt to subscribe for more rapid revision content.