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New York State Regents Examinations
New York Regents Living Environment (biology) — cells, biochemistry, genetics, evolution, ecology, human body systems, reproduction, ecosystems. RETIRED: NYSED's final administration was June 2026; it is replaced by the Life Science: Biology Regents. The material here still covers the same biology and remains useful for review, but new students should prepare for Life Science: Biology.
10 topics · 26 lessons · 149 practice questions
Cell structure, organelles, the cell membrane, diffusion, osmosis, active transport, and how cells form tissues and organs.
3 lessons · 15 practice questions
The four major macromolecules (carbs, lipids, proteins, nucleic acids), the role of enzymes, and how environment affects enzyme function.
2 lessons · 15 practice questions
How plants capture energy in photosynthesis and how all organisms release it in cellular respiration. ATP, glucose, oxygen, and CO₂.
2 lessons · 15 practice questions
DNA structure and replication, how genes code for proteins, mutations, and genetic engineering.
3 lessons · 15 practice questions
Mitosis vs. meiosis, sexual vs. asexual reproduction, fertilization, embryonic development, and the human reproductive system.
3 lessons · 15 practice questions
How natural selection works, evidence for evolution, common ancestry, speciation, and reading evolutionary trees.
3 lessons · 15 practice questions
Food chains, food webs, energy pyramids, population dynamics, carrying capacity, niches, and ecological succession.
3 lessons · 15 practice questions
How matter cycles through ecosystems (carbon, nitrogen, water cycles), biodiversity, and ecological stability.
2 lessons · 15 practice questions
Homeostasis, feedback mechanisms, the immune system, hormones, and how body systems work together.
3 lessons · 14 practice questions
How humans affect the environment, climate change effects on biology, scientific inquiry, experimental design, and lab safety.
2 lessons · 15 practice questions
Create a free account to work through 149 practice questions with worked explanations, read the full lessons, take timed full-length practice exams, and track which topics you have mastered.
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