I am thinking the rock that forms from lava that cools quickly is D) Obsidian.
The keystone species is the one at the bottom of the pyramid, if we look at it like a pyramid. If the grass dies, then the deer cannot get food and die, and the predator cannot eat and dies, and the whole ecosystem can fall apart.
Inhaled nicotine is D. Absorbed and excreted rapidly
The answer to this one is <span>B.Blood vessels are not located in the epidermis, but in the underlying dermal connective tissue.
I'm being serious I took this on edgeunity
hoped this shelped
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The right ventricle pumps deoxygenated blood to the lungs.
