Vegetables that start with A. Acorn squash: small dark green or a yellow ribbed squash with yellow to orange flesh. â Acorn squash soup tastes delicious; it makes a great winter meal. My mother used to prepare it for us as kids. Artichoke: a thistle like flower head with edible fleshy leaves and heart.
Do spiders have transparent blood? Spiders have blue blood. In human blood oxygen is bound to hemoglobin which contains iron, giving it the blood a red color. In spiders, as well as other Arthropods and Molluscâ¦s, oxygen is bound to hemocyanin which contains copper, giving its blood a blue color. The same interaction that causes oxygenated blood to color, also causes iron rust to appear reddish and the oxidized copper to appear green.
Human blood is red because of the iron in the haemoglobin. This gives red blood cells their red colour. Veinous blood is much darker than arterial blood, and your teacher is right that oxygenated (arterial) blood is 'redder' than deoxygenated (veinous) blood. However, human blood is not blue. Some animals do have blue blood though.