Contrast the significance of the cone of increasing diversity
withthe pattern representing decimation and diversification. can
youalso give an example of evolution at the phylotypic level
thatconforms to each of these patterns?

The history of human cultures is frequently marked by a distinctive pattern of evolution that paleobiologists term diversification and decimation. Under this process, fundamentally new socioeconomic systems appear during periods of dramatic cultural diversification,typically through cultural cladogenesis. Significant diversification episodes come about under conditions that favor group economic success under effective or geographic isolation.Typically short-lived, they are often followed by abrupt decimation under more competitive economic conditions. Regional archaeological sequences, viewed from this perspective, suggest that cultural evolutionary trends are strongly conditioned by historical contingency, though general evolutionary processes are continuously active; the emergence of new systems may be contingent on economic opportunities associated with niche reorganization; and severe competition such as that associated with demographic stress will generally favor decimation.

Explanation:

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

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