Plz hurry i need this answer
based on the graph, the independent variable is

a) cadmium dosage.

b) tadpole population

c) gallons of pond water.

d) total bullfrog population.

How does upwelling affect coastal fisheries? upwelling damages nutrient supplies at coastal fisheries as the warm, nutrient-rich surface water is replaced by nutrient-poor, cold water. upwelling damages nutrient supplies at coastal fisheries as the cold, nutrient-rich surface water is replaced by nutrient-poor, warm water. upwelling improves the nutrient supply at coastal fisheries as the warm, nutrient-rich surface water replaces the nutrient-poor, cold water. upwelling improves the nutrient supply at coastal fisheries as cold, nutrient-rich water replaces the warm, nutrient-poor surface water.

What type of plant is good for a bioassay and where can i buy it? i only have a month.

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?