Question 40 1 pts
Each of the following statements accurately describes a feature of arteries EXCEPT which
one?
O Arteries have a smooth muscle layer in the wall which provides some stiffness.
O Elastic fibers in arterial walls allow stretching of the arteries.
O Valves along major arteries maintain directed blood flow.
O A tough supportive layer of connective tissue containing collagen is found on the outer surface of
arteries.
Previches

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

glycolysis is a process that fuel your metabolism. it is apart of cellular respiration the process that produce atp.

explanation:

idk

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.