Living things require specific organic molecules in order to survive. The picture above represents some specific examples of foods that are mainly composed of one of these necessary organic molecules. The organic molecules found in these types of food are
B) proteins.
The answer to your question is
x-rays
Answer: The second answer because, the Earth's mantle is mainly a fluid, but sometimes a solid. It rises, but never sinks.
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A bone mineral density (BMD) test measures how much calcium and other types of minerals are in an area of your bone.
Answer:
(D) depolarization causes release of neurotransmitters.