General Biology II · Module 13 · Animal form, function and homeostasis

Animal Form and Function Walkthrough

Watch heat leave a mouse and enter a lizard, blood loop through fish and bird hearts, water rush into a freshwater fish, air flow one way through a bird and a kidney build concentrated urine. Each idea is drawn at the level of the animal, its tissues and its molecules. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · General Biology II Study Tools · Drawings are simplified and not to scale. CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Blood, water and heat are shown moving far faster than in real life so you can follow them. Practise next in the Animal Form and Function Lab.