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The majority of marine species inhabit the

The factors that tend to limit photosynthesis in marine environments include:

Which area has the highest amount of primary productivity

Areas of hypoxic water that are usually near mouths of major rivers are called

The systematic classification of organisms is called

Another name for warm blooded animals is

An example of a “cruiser” is a:

An off-time transition means that it _______________.

Match the organism with the correct taxonomic classification. Use each choice once, more than once, or not at all. 

the artificial enrichment of waters by a previously scarce nutrient that can trigger an overabundance of algae is called