A biology student wanted to study how the amount of light affects the growth of aquatic plants over the course of a week. She set up 2 tanks with 4 plants in each. Both tanks were identical in every way except for the amount of light provided. What is one thing the student could do to improve the accuracy of her
results?

b brown mice / white sand dunes

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

ya the other dude is right