Back to Explore
ScienceHigh School 4.8 · 8,900

Biology

The science of life: cells, DNA, evolution, and how organisms work.

Dr. Aisha Rahman, Biology Instructor

Dr. Aisha Rahman

Biology Instructor

Course progress0 / 4 lessons
1

Inside the Cell

Organelles and what they do.

8 min +60 XP2 quiz questions
2

Genetics & Inheritance

How traits pass from parents to offspring.

9 min +65 XP2 quiz questions
3

Photosynthesis & Respiration

How life captures and releases energy.

8 min +55 XP2 quiz questions
4

Evolution by Natural Selection

How species change over time.

9 min +60 XP2 quiz questions

Common questions

Who is "Biology" for?

It is written for learners at High School level (Grades 9–12), and for anyone older who wants a clear refresher on science. The science of life: cells, DNA, evolution, and how organisms work. There is no application or entry test — you can start the first lesson straight away.

How long does the course take?

There are 4 lessons totalling 34 minutes of reading and quizzes, laid out over 3 units. You can move at your own pace — progress is saved as you go.

What do I need to know before starting?

No prior coursework is assumed. The course opens with "The Cell", covering organelles and membranes, so the foundations are built in rather than expected.

Is the course free?

Yes. Every course on Monster Class is completely free, with no credit card, trial period or paywall. Creating a free account simply saves your progress, XP and place on the leaderboard across devices.