A full ACT-style Biology mock test drawn from the entire Gcourses curriculum — all 8 chapters, from Evolution to Human Physiology. Answer each question, then get a personalized breakdown of exactly what you’ve mastered and what still needs work.
Two timed sections of 34 questions each, 45 minutes per section (90 minutes total). When the timer runs out, the section is submitted automatically. You can move back and forth between questions within a section.
We’ll email your full score report to you and to Gigi when you finish.
You've finished Section 1. Section 2 covers the same 8 chapters with 34 fresh questions and its own 45-minute timer.
Every question with your answer, the correct answer, and why.