1. Where do salts and minerals in the ocean come from? a. the amount of carbon dioxide tends to vary with depth
b. Erosion, hydrothermal vents, and volcanic activity
C. Erosion and temperature changes
d. currents change the pH of

Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes? a. amoebas b. water molds c. ciliates d. slime molds

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

Anurse is preparing to administer ampicillin 500 mg in 50 ml of dextrose 5% in water (d5w) to infuse over 15 min. the drop factor of the manual iv tubing is 10 gtt/ml. the nurse should set the manual iv infusion to deliver how many gtt/min? (round the answer to the nearest whole number. use a leading zero if it applies. do not use a trailing zero.)