Examlex
What is the most common form in which the products of photosynthesis circulate from cell to cell in vascular plants?
Correlation
A statistical measure that indicates the extent to which two or more variables fluctuate together. In geology, it often refers to the matching of rock layers from different locations.
Fossil Species
The remains or traces of organisms from a past geologic age, preserved in sedimentary rock, which provide valuable information about Earth's history.
Oldest Rock
The earliest forms of solid rock on Earth, providing evidence of the planet's geological history and surface conditions.
Billion Years
A time scale used in geology and astronomy to describe events or processes that happened a billion years ago or the age of geological formations.
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