Nurturing Life Sciences
#Id: 8769
#Id: 8187
#XL - Q Biochemistry
#Id: 7055
#XL - T Zoology
Dollo’s law: A biological generalization positing that complex characters, once lost in evolution, are extremely unlikely to reappear and thus the loss of complex characters is virtually always irreversible.
#Id: 8238
#Id: 8192
#Id: 7048
Theory of recapitulation - Ernst Haeckel