Which of the following distinguishes lymphatic vessels from veins? -lymphatics have valves, while veins do not. -lymphatics lack the three tunics present in veins. -lymphatics transport fluids toward the heart. -permeability of the walls

The correct answer is: Permeability of the walls

The walls of lymphatic vessels, capillaries are more permeable than those of blood capillaries and because of that able to absorb larger particles from the tissues, such as proteins, cells, bacteria.

Some of the differences between blood and lymphatic vessels also are:

•Blood vessels are not interrupted (closed circulatory system) while lymphatic vessels are interrupted via lymphatic nodes.

•Veins are connected with the central pump of the circulatory system-heart, while lymphatic vessels don’t have such structure.

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.