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Answer:
what I don't understand what is the Ctcagt
The answer is Arteries
Arteries carry oxygen-rich blood from the heart to capillaries. On the contrary, veins carry blood without oxygen from the capillaries to the heart.
Arteries are very flexible and yet strong blood vessels so that efficient transport of oxygen-rich blood along the bloodstream through the organism is enabled.
These are sensor, registry and short-term memory.
The answer is d because the ovary's job is twofold. They produce the hormones including estrogen.
