Biology
They are present in the underground parts of the plants and stored food

Chloroplasts
Chromoplasts
Leucoplasts
Lysosomes

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Biology
Which of the following is true about veins?

Veins are more muscular than arteries
Veins have valves; arteries do not
Veins carry blood away from the heart, while arteries carry blood to the heart
Veins have a smaller diameter lumen than arteries

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