Your textbook describes two sequential of interaction between organisms and their environments that have existed since god's creative work began.

Phases or components

Your textbook describes two sequential phases of interaction between organisms and their environments that have existed since god's creative work began. Organisms interact with their environments in different ways. Different organisms of a biological community cooperate and compete for habitats and share the resources in that habitat.

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.