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Which statement is true?
Fossil Record
The collection of physical remains of organisms from the past, preserved in Earth's crust, which provides evidence of the history of life.
Microorganisms
Tiny living organisms, such as bacteria, viruses, and fungi, that can be seen only with a microscope.
Cambrian Explosion
The Cambrian Explosion was a significant event in the Earth's history approximately 541 million years ago, during which most major animal phyla appeared in the fossil record over a relatively short period.
Ocean Chemistry
The study of the chemical composition and properties of seawater, including the cycles and distribution of chemical elements and their compounds within the ocean.
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Q84: _ refers to the abnormal functioning of