Which of the following statements is true?

Veins carry blood away from the heart.
Arteries are thinner and harder than veins.
Capillaries connect arteries and veins.
The left ventricle controls the heartbeat.

C. capillaries connect arteries and veins.

Explanation:

A is false, veins carry blood towards the heart.

B is false because arteries are the thickest blood vessel.

C is completely true

D is false, heartbeat is controlled by electric impulses

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.

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