Which protist is multicellular, found in warm ocean waters and has a red color due to the red photosynthetic pigments in its cells?

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

Explain why biological control methods are generally environmentally superior to chemical pest control methods.

Overtime the pond slowly becomes more acidic due to the release of chemicals from a nearby factory. which of the organisms would most likely survive the change to their environment?