Cell Structure & Transport
Organelles, membranes, diffusion, osmosis, and homeostasis.
Cells, systems, evidence, and exams
Build biology confidence one question at a time.
A playful classroom space for high school students to practice core biology ideas, track growth, and give teachers a quick view of class progress.
Choose a path to preview the next classroom flow.
Practice by unit
Biology topics for repeated practice
Genetics & Heredity
Traits, Punnett squares, mutations, DNA, and protein synthesis.
Evolution
Natural selection, adaptation, evidence, and population change.
Ecology
Food webs, energy flow, cycles, communities, and human impact.
Human Body Systems
How organs and systems work together to keep organisms alive.
Scientific Skills
Graphing, data analysis, claims, evidence, reasoning, and lab design.
Teacher/class dashboard
See what students are ready for next.
Teachers will be able to scan class progress, find hard questions, review topic trends, and decide which biology concepts need a mini-lesson or another practice round.
Class average76%
Hardest topicCell transport
Ready to reviewGenetics vocabulary