Not sure sorry somone awnser this
Answer:
Explanation:
Tunica media; contains connective tissue that provides structural support
The answer is C since heterotroph means they don't have a way of making food
An environment high in carbon dioxide and high in oxygen induce oxygen to bind to hemoglobin. Another factors are an environment under high pressure and an environment under low pressure.
Anton van Leeuwenhoek :-))
