Which animal has three hearts?

A. Crow B. Dolphin C. Octopus  D. None of these An octopus’s three hearts have slightly different roles. One heart circulates blood around the body, while the other two pump it past the gills, to pick up oxygen. The correct answer to the question: “Which animal has three hearts?” is “Octopus “.

which type of rock is made from molten(Fire) material within the earth surface?

A. Sedimentary rock B. Schist rock C. Igneous rock D. Metamorphic rock Igneous rocks (from the Latin word for fire) form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface. The correct answer to the question: “which type … Read more