29. Name two things you can do to help preserve tropical rain forests.
30.
A. What are the two samples of DNA that are needed in order to identify the DNA as
belonging to a specific person?
B. What is a problem with partial DNA samples? In your answer, include how databases
relate to this problem.
31.
A. List six ways that you personally can cut down on CO, emissions to the atmosphere.
B. Hypothesize how small changes in energy use can make a significant difference in CC
emissions.