Allometry
The disproportionate change in size and function that occur when separated isolated features are compared
Surface area-to-volume ratio
Smaller cells have more efficient exchange
Homologous structure
Similar embryonic origin, despite the diverse shape
Analogous structure
Arise independently via convergent evolution
Regulator
Endotherms
Conformers
Ectotherms
Negative Feedback
Reduces excessive response, control of blood glucose levels
Positive Feedback
Amplifies change, release of oxytocin
Antagonistic Control
Loop that regulates body temperature
Developmental Plasticity
Genetically identical individuals that rear features in the presence of certain stimuli