Light penetrates the ocean only to which of the following depths?
•20 m
•200 m
•500 m
•2,000 m

Why do mountaineers become breathless as they reach high altitudes

Mrna: gcuaauguc what amino acids does the mrna above code for? what type of amino acids or function are uag, uga, and uaa coding for? which codon (3 letters) signals translation to start and also codes for the amino acid methionine (met)?

Which gas prevents the spread of fire and extinguishes it? is a type of compressed gas that prevents the spread of fire and extinguishes it.