What is a feed back mechanism in the human body

Which of these organisms have the greatest amount of cell specialized

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.

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.