THE COLLEGE BOARD PROMPT Growth and dynamic homeostasis are maintained by the constant movement of molecules across membranes. Apply this concept to shell-making orgs in oceans.

THE COLLEGE BOARD PROMPT Organisms respond to changes in their external environments. Apply this concept to shell-making orgs in oceans.

THE COLLEGE BOARD PROMPT Biological systems are affected by disruptions to their dynamic homeostasis. Apply this concept to shell-making orgs in oceans.

Laboratory Questions How would you increase the pH in an experiment with organisms in petri dishes? How would you decrease the pH? How would you do both the above to plants in soil? Be specific. If you wanted to increase or decrease the pH in the above experiments BY A SPECIFIC AMOUNT (e.g. one petri dish with pH 5, one with pH 4, and another with pH 3) … how would you do that?

1. How have humans contributed to ocean acidification. 2 1. How have humans contributed to ocean acidification? 2. How is ocean acidification affecting organisms in the ocean? 3. Why is the rate of ocean acidification alarming to scientists?