OpenSimulator Archive. OAR file is an OpenSimulator Archive. OpenSimulator is an open source multi-platform, multi-user 3D application server. It can be used to create a virtual environment (or world) which can be accessed through a variety of clients, on multiple protocols.
biological adaptation the adaptation of living things to environmental factors for the ultimate purpose of survival, reproduction, and an optimal level of functioning. color adaptation. 1. changes in visual perception of color with prolonged stimulation.
A biochemical profile, commonly also referred to as the blood profile or blood chemistry, is a blood test commonly done in dogs that assesses the function of internal organs, measures the electrolytes such as blood potassium, and identifies the levels of circulating enzymes.