In which trimester does the fetus go through periods of sleep and wakefulness

Second trimester

Explanation:

From the final of second trimester the fetus begins to develop sleep-wake cycles, and the mother may begin to notice when the baby is awake and moving and when it is sleeping and quiet. It is also possible to notice periods when there are rhythmic movements, which are probably hiccups.

no

explanation:

your too far away.

the aorta is the large artery leaving the heart branches into smaller arteries, which eventually branch into capillaries.the arteries carry oxygen and nutrients away from your heart, to your body's tissues. the capillaries are small, thin blood vessels that connect the arteries and the veins. the statement that arteries carry oxygen-rich blood to capillaries is true. veins on the other hand are blood vessels that take oxygen-poor blood back to the heart.