According to the concept of punctuated equilibrium,
A) natural selection is unimportant as a mechanism of evolution.
B) given enough time, most existing species will branch gradually into new species.
C) a new species accumulates most of its unique features as it comes into existence.
D) evolution of new species features long periods during which changes are occurring, interspersed with short periods of equilibrium, or stasis.
E) transitional fossils, intermediate between newer species and their parent species, should be abundant.
Altruistic behaviour or kin selection?
Dentition, as illustrated in Knight's Sketches in Natural History
Natural abundance of Mercury
Concept Formation
Natural Healing Timeline
Kyo and jitsu-concept of energy deficiency and excess from shiatsu.