One of the main differences that can be seen is that cardiac muscles are involuntarily controlled, whereas the somatic nervous system controls the ovement of the skeletal muscles
Answer:
Adaptation to there environment
The answer is the Precapillary sphincter
The correct answer is A.
Toxins and various pollutants increase in concentration through the food chain in a process called biomagnification. This means that the organisms on the top of the food chain, like the herring gull, have many times greater concentration of toxins than the lower food chain level organisms because they prey on lower food chain level organisms. If a herring gull ears 100 herrings, it will have a 100x times greater concentration of toxins in its body than a herring.
