Question

question 7
all of the following are true of larger lymphatic vessels, except:
answer
their walls are thinner than those of veins.
there are no clear boundaries between the layers of their walls.
larger lymphatic vessels differ from veins in that they do not contain valves.
they have wider lumens than veins.
i dont know yet

Explanation:

Lymphatic vessels, like veins, have valves to prevent backflow. Larger lymphatic vessels have thinner walls, no clear - cut wall layer boundaries, and wider lumens compared to veins.

Answer:

Larger lymphatic vessels differ from veins in that they do not contain valves.