12th Biology Chapter 13 |Homeostasis Types of Animals on the Basis of Heat Source | PunjabBoard2026

Welcome to 12th Biology Punjab Board New Book 2026. In this lecture, we continue Chapter 01: Homeostasis with Thermoregulation Part 2 (Lecture 5). This video explains 13.3.1 Types of Animals on the Basis of Heat Source in a simple and exam-oriented way. Topics Covered: Homeostasis Thermoregulation Part 2 13.3.1 Types of Animals on the Basis of Heat Source Ectotherms (Cold-blooded Animals) Endotherms (Warm-blooded Animals) Examples and Characteristics Punjab Board New Book 2026 📚 Best for FSc Part 2, 12th Class Biology, Punjab Board Exams, MDCAT & Entry Test Preparation. 👍 Don't forget to Like, Share & Subscribe for complete Biology lectures. 12thBiology #Homeostasis #Thermoregulation #BiologyLecture #PunjabBoard #NewBook2026 #FScBiology #Class12Biology #BiologyPakistan #Lecture5 #MDCAT #BiologyEducation #BoardPreparation #ThermoregulationPart2 #HomeostasisChapter1