Question 2 To investigate a possible relationship between two factors, such as acidity and solubility, you must first

identify the variables involved in the experiment. Identify the independent variable, the dependent variable,

and any possible confounding variables within this experiment.

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

The influenza virus cause the flu, but not other diseases. why?

Did you know that a blue wales tongue weighs more than an elephant?