Answer:
<em>The correct option is A) cadmium dosage</em>
Explanation:
In an experiment, an independent variable can be described as a factor which is changed naturally or by us to see its effect on the dependent variable. The dependent variable is the variable which is under study and depends on the independent variable.
In the following experiment, we are checking the effect of different dosages of cadmium on the surviving ability of tadpoles. Hence, cadmium dosage is the independent variable. Tadpole population is the dependent variable.
D, they will have less water available to them for irrigation.
The answer to 1 and 2 is
fishing using cyanide and dynamite, pollution from sewage and agriculture, massive outbreaks of predatory starfish, invasive species.
Sudden fever, headache, stiff neck. Additional symptoms may include nausea, vomiting, sensitivity of the eyes to light, confusion, and rashes (typically dark purple spots on the torso, arms or legs).
