1. The Central Case focuses on the Golden Toad. According to the article, what other Monteverde species are at risk?

2. According to the article, how can a warmer, drier climate affect the
Checkerspot butterfly?

3. Describe what Alan Pounds' research has found about the changes in
Monteverde's weather.

4. Why might species move up a mountain as temperatures rise?

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food