When a person is exercising, the body needs to deliver increased amounts of oxygen to the muscles. which component of blood ensures that the muscles will receive it? thrombocytes

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.

The diagram shows a chicken embryo and a human embryo

What might explain the real-world results, show in the graph to the right, for one class of twenty students? check all that apply.