Carry blood away from the heart and carry blood back to the heart.
Capillaries, veins
Veins, arteries
Arteries, capillaries
Arteries, veins

the correct answer is

Explanation:

The circulatory system is made up of blood vessels that carry blood away and towards the heart. Arteries carry blood away from the heart and Veins carry blood back to the heart.

hope this works out

these are common warning signs of overtraining syndrome:

washed-out feeling, tired, drained, lack of energy

mild leg soreness, general aches, and pains

pain in muscles and joints

sudden drop in performance

insomnia

headaches

decreased immunity (increased number of colds, and sore throats)

decrease in training capacity/intensity

moodiness and irritability

depression

loss of enthusiasm for the sport

decreased appetite

increased incidence of injuries.

a compulsive need to exercise

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