Practice a real question • free

Learn faster with bite‑sized practice that actually sticks.

StudyBits turns courses into short lessons + interactive questions. Try one below, then keep going with the full course.

Build your own course

Interactive

Answer, get feedback, and move on.

Personalized

Create courses tailored to your goals.

Track progress

Stay consistent with streaks + goals.

Try a sample question

Answer it, then continue the course

A student says: "Natural selection is the best explanation for how populations change over generations, based on many studies and observations." How should this statement be classified?

Report Issue

The answer does not look quite right; it should be:

The answer does not look quite right, I don't see the correct answer.

The question does not make sense.

The question has a grammatical error.

One or more of the options is duplicate.

The description is incorrect or incomplete.

An image is missing.

Submit

Course

Foundations of Biology: Living Systems, Information, and Energy

8 units48 lessons

Topics

BiologyLife ScienceBiochemistry (introductory)GeneticsEcology and Environmental ScienceEvolutionary Biology

About this course

This course develops a foundational understanding of living systems through core biological principles and scientific inquiry. Topics include the characteristics and organization of life; biochemistry of macromolecules, enzymes, and ATP; cell theory, structure, membranes, and transport; energy and matter flow via cellular respiration and photosynthesis; and cell division through mitosis and meiosis. It introduces genetics from DNA structure to inheritance and gene expression, connects variation to evolution and biodiversity, and applies ecological thinking to ecosystems, cycles, populations, and human impacts. Emphasis is placed on experimental design, data interpretation, and evidence-based biological reasoning.