Why does a predator kill its prey, when a parasite rarely kills its host?

Air pollution is only caused by human activity, select the best answer from the choices provided ot of true or false

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.

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.