The central portion of Earth is called the CORE
My Answer: <span> lower than terrestrial planet densities, lower than the density of rock.
Hope I helped! :D
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The diaphragm stops the passage of light
Most animals in Animalia have backbones, but not all.
The correct answer would be C, because all organisms in Animalia are heterotrophs which means that they depend on other organisms (like animals and plants) for food.