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Acquired characteristics
Evolution is the inheritance of _______________________
Nitrates and phosphates
The main inorganic nutrients necessary for the success of marine autotrophs are...
Sirenia
Which group of marine mammals was named because of its fanciful resemblance to mermaids?
Hypertonic
A marine animal placed in fresh water would be _________ to its environment
Heavy to float; near the surface
Diatoms create auxospores to overcome their decrease in size after division. The problem with smaller size is that it means the cells have to high a ratio of glass to living tissue which makes them too _____________; Diatoms need to be ____________ for photosynthesis to occur