Starting at the lungs, tell me the path blood takes to get to the human heart, out to your muscles, and back to the lungs.

Variety of living organisms; includes genetic, species, and ecological types.

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.

Across of blue x blue (both heterozygous) would result in