Which of the following types of data would be required in order to consider the hypothesis that acid precipitation caused the loss of the salamander?
Select all that apply.
A. Data demonstrating that the salamander is no longer present
B. Data demonstrating that the stream has become less acidic than it was
previously
C. Data demonstrating that the stream has become more acidic
D. Data demonstrating that the course of the stream has shifted

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.

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.