Mastery Review Lab
Practice what needs attention.
Recent misses rise to the top. Correct answers update the same mastery record used by lessons, guided paths, and your Mastery Passport.
0recent misses
100unmastered
0mastered
Current queue100 checks
Missed checks first, then other unmastered concepts.Seed & Germination
Seed anatomy
0previous attempts
Which seed structure becomes the first root organ after germination begins?