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Hobby Boss SU-47 Berkut 1/72 Model Kit: A Detailed Look at This Unique Jet

Explore the Hobby Boss SU-47 Berkut 1/72 scale model kit, a distinctive forward-swept-wing aircraft that offers an exciting ...
BBC

The circulatory system

Well, the blood has to be kept moving around all the time because it's the body's delivery system. Every possible part of the body has to be supplied with oxygen and food and water, and the veins and ...