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.
Answer:
chromatin network or chromosomes
Volcanic eruptions may occur in both locations, as the movement can cause the tectonic plates to allow magma through.
Humans disturb the earth and because of this, the earth is weakened.
Mutualism is the symbiotic relationship that is good for both species involved as both species benefit