AP Biology
AP Biology topics appear in 25 Scivra investigations. This collection groups the catalog's existing unit references so students and teachers can connect a topic with an interactive model, a public investigation guide, and questions for comparing predictions with evidence.
Choose a question to investigate
Start with one prediction, change one condition, and keep a measurement with units. These starting points use this collection's existing catalog alignments. The unit groups below retain the full mapped list; they do not establish complete AP coverage or replace required hands-on work.
Membranes and concentration
Predict tissue mass change, compare sucrose conditions, and explain the zero crossing with water movement.
Diffusion & OsmosisEnergy and rate
Measure a leaf-disk flotation curve, retain the water control, then connect the dark response with respiration.
Photosynthesis Leaf DisksDNA evidence
Compare DNA lanes with a ladder and explain how PCR amplification differs from fragment separation.
PCR & Gel Electrophoresis
Plan your AP laboratory work against the current College Board course-audit requirements. Course guides are public; simulation access is shown on each course page.
AP Biology Unit 1
AP Biology Unit 2
AP Biology Unit 3
AP Biology Unit 4
Biology
Mitosis in Onion Root Tips
Count dividing cells in a root tip. How long does each phase take?
Biology
Homeostasis & Feedback
Plunge a hand in ice water or run in place. What does your body do next?
Biology
Cell Signaling Pathways
A hormone docks on a receptor and a whole cell changes. Block one step and see what breaks.
AP Biology Unit 5
AP Biology Unit 6
Biology
Lactase & Lactose Tolerance
Why can some adults digest milk while others can't? Test milk, follow a family, and search the DNA.
Biology
DNA Extraction & Structure
Pull DNA out of strawberries. Then zoom in to see how it is packed and paired.
Biology
From Gene to Protein
Transcribe and translate a gene. Change one base and see what happens to the protein.
Biology
PCR & Gel Electrophoresis
Copy DNA, cut it, and run it through a gel. Whose DNA matches the crime scene?
Biology
Bacterial Transformation
Give bacteria a glowing gene. Which plates will glow?
AP Biology Unit 7
Biology
Evidence of Common Ancestry
Compare arm bones, embryos, and DNA from five animals. Build the family tree.
Biology
Beaks of Finches
Compete for seeds with different beaks. Which birds leave more offspring, and which gene shapes the beak?
Biology
Population Genetics, Drift & Speciation
Run island populations for 50 generations. When does chance beat selection, and when do islands become new species?
Earth Science
Life Changes the Planet
Add cyanobacteria to an early Earth. Watch oxygen rise, iron rust out of the sea, and soils form.
AP Biology Unit 8
Biology
Elodea, Snails & CO₂
A snail and a water plant share a sealed tube of indicator. What happens to the color over a day?
Biology
Transpiration & Stomata
Put a plant in wind, light, and humidity. Measure water loss and count stomata.
Biology
Animal Behavior: Choice Chamber
Do pill bugs prefer wet or dry, light or dark? Do they survive better in a group?
Biology
Population Growth & Carrying Capacity
Grow duckweed in a pond, then harvest it. When does the growth curve bend, and how much can you take?
Biology
Energy Dynamics
Feed plants to caterpillars. How much of the energy ends up in the caterpillar?
Questions about this collection
Which labs are included in this AP Biology collection?
The 25 distinct courses below have an explicit AP Biology reference in Scivra's catalog. A course can appear in more than one section when its catalog entry lists several references.
Does this collection cover the entire curriculum or replace required laboratory work?
No. These are selected catalog alignments, not accreditation, an official curriculum audit, or complete course coverage. Virtual investigations support preparation and explanation; they do not replace required hands-on laboratory work or safety instruction.
How can I use the course guides before an investigation?
Open a course card to read its public guide, model conditions, and frequently asked questions. Use the guide to choose a variable, make a prediction, and plan a measurement. Simulation access follows the access information on that course page.