Ridges and hills that separate two watersheds are called the ...

What prediction can you make about future levels of carbon dioxide (co2) in the atmosphere?

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what does possible advantages does hydroponic gardening (growing plants in water) have over growing plants in oil?

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Imagine that a researcher is comparing the sequence of several protein-coding genes among mice, rabbits, and humans. She finds that, for most of these genes, the rabbit sequences are more similar to the human sequences than are the mouse sequences.

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What is the genotype for individual D

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What happens once intercelluar signals reach the inside of a cell using some type of receptor? the signal stops. the signal is transferred to the cytoplasm. the signal produces protein. intracelluar communaction takes over.