Comparison between Endotherm and Ectotherm

By: Prof. Dr. Fazal Rehman | Last updated: February 3, 2024

Let me share with you a comparison between Endotherm and Ectotherm.

Aspect Endotherm Ectotherm
Cold/Warm blooded Warm-Blooded Cold-Blooded
Metabolism High and constant Low and variable
Body Temperature Relatively constant Fluctuates with the environment
Source of Heat Internal (metabolic heat) External (environmental heat)
Energy Efficiency Higher energy expenditure Lower energy expenditure
Activity Levels Active in a wide range of temperatures Activity levels depend on environmental temperature
Adaptation to Climate Can inhabit a wide range of environments Limited to specific temperature ranges
Reproduction Can reproduce year-round Reproduction often tied to temperature and seasonal changes
Examples ·        Birds

·        Mammals

·        Reptiles

·        Amphibians

·        Most invertebrates

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