Answer 12-18
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13
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Answer 1218 Like this 12 13 Whoever does this correctly will get brainliest points Somebody do this ASAP class=

Respuesta :

12. The ones that carry blood back to the heart are called veins.The veins (blue) take oxygen-poor blood back to the heart

13. The arteries (red) carry oxygen and nutrients away from your heart, to your body's tissues. . Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body's tissues.

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osa16

Answer:

12. veins or vena cava

13. arteries

14. testes

15. digestive system

16. respiratory and circulatory systems

17. capillaries

18. ligaments