An external fixator acts as a stabilizing frame to hold the broken bones in proper position. In an external fixator, metal pins or screws are placed into the bone through small incisions into the skin and muscle.n external fixator acts as a stabilizing frame to hold the broken bones in proper position. In an external fixator, metal pins or screws are placed into the bone through small incisions into the skin and muscle.
Cockatoo Squid This transparent cockatoo squid (Leachia sp.), also known as a glass squid, lives in the depths of the ocean and has many adaptations to help it survive there. It retains ammonia solutions inside its body that give it a balloon-like shape and help it float.
Common sea stars live in the North Atlantic Ocean along the coasts of Canada, the Northeastern United States, Europe and the northern coast of Africa. Common sea stars are found along rocky shores in intertidal areas, and deeper waters out to about 2000 feet.iet and Feeding. Common sea stars eat mollusks, including bivalves (a favorite prey item is the blue mussel) and gastropods. They also eat crustaceans and worms. They act both as active predators and scavengers.