In an experiment, a scientist adds half a cup of fertilizer to pond “A” and zero fertilizer to pond “B” to compare the amount of
algae growth from the fertilizer over a 30-day period. Each day he records the amount of algae that has grown in pond "A" and in pond "B" . Measuring the amount of algae that grows would represent a(n)
A. dependent variable
B. independent variable
C. prediction
D. model
The right and left ventricles are responsible for pumping blood while the right and left atria are responsible for receiving blood. These are the four main chambers of the heart that are responsible for transporting oxygenated blood within the body.
