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

el condicional espanol ele worksheet.

Question 8 1 pts Jerome went apple picking with his family. In his bag he had four Granny Smith apples, two Honeycrisp apples, three Gala apples, and one Fuji a

Jenny bought gallons of lemonade and milk for a banquet. A gallon of lemonade costs $5, and a gallon of milk costs $3. Jenny spent $120 and bought 32 total gall

Could someone answer for this for me?

According to Ericsson, what basic characteristics do all lies have in common? How and how well, do the kinds of lies she lists fit this basic DEFINITION?

45,39,33,27,21,15, ?

Of 30 students 1/3 play sports. Of those who play sports, 2/5 play soccer. How many students play soccer

ill give brainliest to the correct answer

Im stuck on this question can someone pls help me A person’s self-concept can develop positively if the person understands and accepts their gender identity an

What was true shot fat she service in cutie prior to the progressive era A-the government controlled rates B-companies could charge as much as they liked C-cust