A metamorphic rock is the outcome of a rock that has pre-existed. The original rock goes through lots of heat and pressure, which make it go through physical and chemical changes.
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C14 radio isotope decays into Nitrogen
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Answer:
A
Explanation:
Primary productivity, in ecology, the rate at which energy is converted to organic substances by photosynthetic producers.
Answer:
neurons - nerve tissue - brain - central nervous system - human being.
Explanation:
Reason: The Levels of Organization is organizing how everything in a human body is put together. Example: Neuron (or cell), tissues (that are made from cells that come together), heart (is created when groups of tissues come together), circulatory system (is made when other groups of organs come together to form a system that work with each other to maintain life), and then the is carries on with other systems that together form the human body