1) You are sitting down to eat your favorite food raisin bran.
You know there are 4 main processes involved in digestion:
Ingestion, Digestion, Absorption, and Elimination. Using a flow chart that includes the organs involved,describe what happens in each
of the four processes in the human system.
2) You prop open the gill covers of a fish, tie a string around its tail, and tow it backwards through the
water. What does this movement do the amount of gas that can be exchanged in the fish?
3) When you are jogging, your muscles are using more oxygen and releasing more carbon dioxide into the
blood than when you are at home on the couch.
a. How does this affect blood pH?
b. How does the body react to changes in blood