How do lymphatic capillaries differ from blood capillaries?

a. fluid flows in one direction in lymphatic capillaries.
b. lymphatic capillaries are dead-end tubes.
c. the walls of lymphatic capillaries are composed of endothelium.
d. lymphatic capillaries are highly permeable.

b.Lymphatic capillaries are dead-end tubes.  

d.Lymphatic capillaries are highly permeable.

Explanation:

Lymphatic capillaries transport lymph that flows with little pressure, these capillaries are made of endothelium, are blind-ended (closed at one end) and are more permeable than the blood ones because they serve to drain extracellular fluids.

Blood capillaries, on the other hand, transport blood, that contrary to lymph, flows with more pressure, their walls are also made of endothelium but they are less permeable and conform a circuit, meaning they have no dead ends.

I hope you find this information useful and interesting! Good luck!

the dark variety, as they are not visible on the dark tree barks

explanation:

a metamorphic rock would be formed.