abidenmlg12 abidenmlg12

21-06-2017
Biology

contestada

Why do blood vessels and lymph vessels have valves?

Respuesta :

milanoel milanoel

21-06-2017

Lymph vessels have one-way valves in order to prevent the back flow of lymphatic fluid. Blood vessels have valves in order to keep the blood flowing in one direction.

Answer Link

Otras preguntas

what is the sum of 1/4 and 1/7

Why are different constellations of stars seen during different seasons?

Describe the limitations of using models to represent atoms

Solve the system, using any method. y = x + 2 and x + 2y = 25

Please fill the blanks with the right answers A. Nucleus B. Mitochondria C. Endoplasmic reticulum D. Cell wall E. Cell membrane F. Ribosomes G. Lysosome H.

Materials that are poor conductors of thermal energy are called..... Materials that are good conductors of thermal energy are called ...

Determine the equation of g(x) that results from translating the function f(x) = (x + 10)2 to the right 12 units.

really dont know what to do ..

What was the South’s greatest concern when California applied for statehood? A-The South feared it would lose power and influence in the Senate. B-The South fea

How do you find the x intercept and coordinates of the vertexfor the parabola y=x^2-14x+49????