The answer is to add a 0 hours control.
In every experiment, the control group is necessary. That way, effects of all variables except the independent one will be minimized. The<span> independent variable is variable that is not affected in the experiment. In this example, the amount of light. The dependent variable is called dependent because it depends on the independent variables. In this example, the dependent variable is the average volume of oxygen (photosynthesis).
But to minimize effects on variables, it is necessary to include the 0 hours group, so it can be compared to the other groups. </span>
Answer:
oxygen and glucose are the reactants, and ATP, water, and Co2 are the products.
Explanation:
Answer: I think that the reason to this is because the oxygen abundance was too low, the competition for food and other resources was too high, so there could be fish the would be filtered out and be killed.
Explanation:
Spiders are called arachnids. So, a crazy fear of spiders is called arachnophobia.