nataliemandisi2005 nataliemandisi2005

04-09-2020
Biology

contestada

Explain how valves help the transport of blood in veins.

Respuesta :

nazz1010 nazz1010

04-09-2020

Answer:

The valves' main job is to keep the blood moving in one direction – back up towards the heart. When the valve is open, blood freely flows upward towards the heart and when the valves are closed, blood cannot flow back

Answer Link

Otras preguntas

What is the y intercept of x=14

Symptoms of excessive stress include all of the following except

Mark Twain’s novel has been both banned as a disgrace and praised as a work beyond its time for addressing several controversial issues. Now that you’ve complet

$) Craig is selling apple cider at the fall festival. He prepared 5 gallons of cider, which is equal to 20 quarts. He sold 18 quarts. Craig wants to know the am

help me with 17. (I know the image is upside down, but there's a flip button and u can click It to flip it)

I’m young Goodman brown Hawthorne reveals his feelings about his Puritan ancestors when

In what way did President Dwight Eisenhower disagree with Harry Truman on foreign policy?

As a result of the Treaty of Paris of 1763, ) France lost all of its possessions in North America. most of Spain's New World empire was transferred to France. N

can you explain how night blindness is caused

Graph the inverse of the function.