The vasa vasorum is a network of small blood vessels that supply the walls of large blood vessels, such as the aorta and vena cava.
The well - designed experiment test one factor at a time. The answer to the question above is letter A. 1. The items that are being tested are the independent variables and that they cause the dependent variables to change.
Answer:
trachea
Explanation:
it is a tube that connects troat and bronch
<em><u>PLATO ANSWER:</u></em><em> </em>A and C
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