Passages dealing with Biology on the ACT Science Test may feature some of these concepts: body systems, cellular biology, photosynthesis, ecosystems, evolution, and genetics. Everything you need to know about them is in the passage!

This video covers the basics of Biology on the ACT — the topics are wide-ranging as you can see in the video. Stop the video before it begins talking about Physical Sciences. You can check out the ACT Science: Physical Sciences Learn Board to focus more on that later on!
Scientists have acquired biological knowledge through processes known as scientific methods. You will see that the experiments described in the Biology passages tend to follow these 6 steps:

• observation
• hypothesis
• experimentation
• analysis
• conclusion
• theory/law

Looking for even more Biology brush-up so you feel more confident with the subject matter of the passages? These online Biology video lessons help students understand Biology concepts so that they can improve test and quiz scores and more easily complete homework for your high school science class! Basically every possible ACT Biology subject is covered here!