Biology

Explore comprehensive lessons, activities, and resources covering core Biology topics.

What science is, variables, controls, and good experimental design.

Prokaryotes vs. eukaryotes, organelles, and specialization.

Diffusion, osmosis, active transport, and maintaining balance.

How cells capture, convert, and use energy to power life processes.

Growth, repair, and gamete formation; chromosomes and the cell cycle.

Replication, transcription, translation, and gene expression.

Mendelian inheritance, Punnett squares, and modern genetics.

Binomial nomenclature, phylogeny, and the tree of life.

Evidence for evolution, adaptation, and speciation.

Structure and function across the major organ systems.

Energy flow, cycles of matter, populations, and communities.

Species diversity, threats, and strategies for sustainability.

CRISPR, cloning, GMOs, and bioethics in modern biology.

Bacteria, protists, fungi, and viral structure and replication.

Safety symbols, measurement, graphs, and data analysis.